1280250400

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:113

約数の個数: 432

約数和(自身を含む): 4000243968

約数和(自身を除く): 2719993568

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 25, 26, 31, 32, 38, 40, 44, 50, 52, 55, 62, 65, 76, 80, 88, 95, 100, 104, 110, 124, 130, 143, 152, 155, 160, 176, 190, 200, 208, 209, 220, 247, 248, 260, 275, 286, 304, 310, 325, 341, 352, 361, 380, 400, 403, 416, 418, 440, 475, 494, 496, 520, 550, 572, 589, 608, 620, 650, 682, 715, 722, 760, 775, 800, 806, 836, 880, 950, 988, 992, 1040, 1045, 1100, 1144, 1178, 1235, 1240, 1300, 1364, 1430, 1444, 1520, 1550, 1612, 1672, 1705, 1760, 1805, 1900, 1976, 2015, 2080, 2090, 2200, 2288, 2356, 2470, 2480, 2600, 2717, 2728, 2860, 2888, 2945, 3040, 3100, 3224, 3344, 3410, 3575, 3610, 3800, 3952, 3971, 4030, 4180, 4400, 4433, 4576, 4693, 4712, 4940, 4960, 5200, 5225, 5434, 5456, 5720, 5776, 5890, 6175, 6200, 6448, 6479, 6688, 6820, 7150, 7220, 7600, 7657, 7904, 7942, 8060, 8360, 8525, 8800, 8866, 9025, 9386, 9424, 9880, 10075, 10400, 10450, 10868, 10912, 11191, 11440, 11552, 11780, 12350, 12400, 12896, 12958, 13585, 13640, 14300, 14440, 14725, 15200, 15314, 15884, 16120, 16720, 17050, 17732, 18050, 18772, 18848, 19760, 19855, 20150, 20900, 21736, 22165, 22382, 22880, 23465, 23560, 24700, 24800, 25916, 27170, 27280, 28600, 28880, 29450, 30628, 31768, 32240, 32395, 33440, 34100, 35464, 36100, 37544, 38285, 39520, 39710, 40300, 41800, 43472, 44330, 44764, 46930, 47120, 49400, 51623, 51832, 54340, 54560, 55955, 57200, 57760, 58900, 61256, 63536, 64480, 64790, 67925, 68200, 70928, 72200, 75088, 76570, 79420, 80600, 83600, 84227, 86944, 88660, 89528, 93860, 94240, 98800, 99275, 103246, 103664, 108680, 110825, 111910, 114400, 117325, 117800, 122512, 123101, 127072, 129580, 135850, 136400, 141856, 144400, 145483, 150176, 153140, 158840, 161200, 161975, 167200, 168454, 177320, 179056, 187720, 191425, 197600, 198550, 206492, 207328, 217360, 221650, 223820, 234650, 235600, 245024, 246202, 258115, 259160, 271700, 272800, 279775, 288800, 290966, 306280, 317680, 322400, 323950, 336908, 354640, 358112, 375440, 382850, 397100, 412984, 421135, 434720, 443300, 447640, 469300, 471200, 492404, 516230, 518320, 543400, 559550, 581932, 612560, 615505, 635360, 647900, 673816, 709280, 727415, 750880, 765700, 794200, 825968, 842270, 886600, 895280, 938600, 984808, 1032460, 1036640, 1086800, 1119100, 1163864, 1225120, 1231010, 1290575, 1295800, 1347632, 1454830, 1531400, 1588400, 1600313, 1651936, 1684540, 1773200, 1790560, 1877200, 1969616, 2064920, 2105675, 2173600, 2238200, 2327728, 2462020, 2581150, 2591600, 2695264, 2909660, 3062800, 3077525, 3176800, 3200626, 3369080, 3546400, 3637075, 3754400, 3939232, 4129840, 4211350, 4476400, 4655456, 4924040, 5162300, 5183200, 5819320, 6125600, 6155050, 6401252, 6738160, 7274150, 8001565, 8259680, 8422700, 8952800, 9848080, 10324600, 11638640, 12310100, 12802504, 13476320, 14548300, 16003130, 16845400, 19696160, 20649200, 23277280, 24620200, 25605008, 29096600, 32006260, 33690800, 40007825, 41298400, 49240400, 51210016, 58193200, 64012520, 67381600, 80015650, 98480800, 116386400, 128025040, 160031300, 256050080, 320062600, 640125200, 1280250400]

約数ペア:

[(1, 1280250400), (2, 640125200), (4, 320062600), (5, 256050080), (8, 160031300), (10, 128025040), (11, 116386400), (13, 98480800), (16, 80015650), (19, 67381600), (20, 64012520), (22, 58193200), (25, 51210016), (26, 49240400), (31, 41298400), (32, 40007825), (38, 33690800), (40, 32006260), (44, 29096600), (50, 25605008), (52, 24620200), (55, 23277280), (62, 20649200), (65, 19696160), (76, 16845400), (80, 16003130), (88, 14548300), (95, 13476320), (100, 12802504), (104, 12310100), (110, 11638640), (124, 10324600), (130, 9848080), (143, 8952800), (152, 8422700), (155, 8259680), (160, 8001565), (176, 7274150), (190, 6738160), (200, 6401252), (208, 6155050), (209, 6125600), (220, 5819320), (247, 5183200), (248, 5162300), (260, 4924040), (275, 4655456), (286, 4476400), (304, 4211350), (310, 4129840), (325, 3939232), (341, 3754400), (352, 3637075), (361, 3546400), (380, 3369080), (400, 3200626), (403, 3176800), (416, 3077525), (418, 3062800), (440, 2909660), (475, 2695264), (494, 2591600), (496, 2581150), (520, 2462020), (550, 2327728), (572, 2238200), (589, 2173600), (608, 2105675), (620, 2064920), (650, 1969616), (682, 1877200), (715, 1790560), (722, 1773200), (760, 1684540), (775, 1651936), (800, 1600313), (806, 1588400), (836, 1531400), (880, 1454830), (950, 1347632), (988, 1295800), (992, 1290575), (1040, 1231010), (1045, 1225120), (1100, 1163864), (1144, 1119100), (1178, 1086800), (1235, 1036640), (1240, 1032460), (1300, 984808), (1364, 938600), (1430, 895280), (1444, 886600), (1520, 842270), (1550, 825968), (1612, 794200), (1672, 765700), (1705, 750880), (1760, 727415), (1805, 709280), (1900, 673816), (1976, 647900), (2015, 635360), (2080, 615505), (2090, 612560), (2200, 581932), (2288, 559550), (2356, 543400), (2470, 518320), (2480, 516230), (2600, 492404), (2717, 471200), (2728, 469300), (2860, 447640), (2888, 443300), (2945, 434720), (3040, 421135), (3100, 412984), (3224, 397100), (3344, 382850), (3410, 375440), (3575, 358112), (3610, 354640), (3800, 336908), (3952, 323950), (3971, 322400), (4030, 317680), (4180, 306280), (4400, 290966), (4433, 288800), (4576, 279775), (4693, 272800), (4712, 271700), (4940, 259160), (4960, 258115), (5200, 246202), (5225, 245024), (5434, 235600), (5456, 234650), (5720, 223820), (5776, 221650), (5890, 217360), (6175, 207328), (6200, 206492), (6448, 198550), (6479, 197600), (6688, 191425), (6820, 187720), (7150, 179056), (7220, 177320), (7600, 168454), (7657, 167200), (7904, 161975), (7942, 161200), (8060, 158840), (8360, 153140), (8525, 150176), (8800, 145483), (8866, 144400), (9025, 141856), (9386, 136400), (9424, 135850), (9880, 129580), (10075, 127072), (10400, 123101), (10450, 122512), (10868, 117800), (10912, 117325), (11191, 114400), (11440, 111910), (11552, 110825), (11780, 108680), (12350, 103664), (12400, 103246), (12896, 99275), (12958, 98800), (13585, 94240), (13640, 93860), (14300, 89528), (14440, 88660), (14725, 86944), (15200, 84227), (15314, 83600), (15884, 80600), (16120, 79420), (16720, 76570), (17050, 75088), (17732, 72200), (18050, 70928), (18772, 68200), (18848, 67925), (19760, 64790), (19855, 64480), (20150, 63536), (20900, 61256), (21736, 58900), (22165, 57760), (22382, 57200), (22880, 55955), (23465, 54560), (23560, 54340), (24700, 51832), (24800, 51623), (25916, 49400), (27170, 47120), (27280, 46930), (28600, 44764), (28880, 44330), (29450, 43472), (30628, 41800), (31768, 40300), (32240, 39710), (32395, 39520), (33440, 38285), (34100, 37544), (35464, 36100)]