990179680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 288

約数和(自身を含む): 2949488640

約数和(自身を除く): 1959308960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 56, 62, 70, 76, 79, 80, 95, 112, 124, 133, 140, 152, 155, 158, 160, 190, 217, 224, 248, 266, 280, 304, 310, 316, 361, 380, 395, 434, 496, 532, 553, 560, 589, 608, 620, 632, 665, 722, 760, 790, 868, 992, 1064, 1085, 1106, 1120, 1178, 1240, 1264, 1330, 1444, 1501, 1520, 1580, 1736, 1805, 2128, 2170, 2212, 2356, 2449, 2480, 2527, 2528, 2660, 2765, 2888, 2945, 3002, 3040, 3160, 3472, 3610, 4123, 4256, 4340, 4424, 4712, 4898, 4960, 5054, 5320, 5530, 5776, 5890, 6004, 6320, 6944, 7220, 7505, 8246, 8680, 8848, 9424, 9796, 10108, 10507, 10640, 11060, 11191, 11552, 11780, 12008, 12245, 12635, 12640, 14440, 15010, 16492, 17143, 17360, 17696, 18848, 19592, 20216, 20615, 21014, 21280, 22120, 22382, 23560, 24016, 24490, 25270, 28519, 28880, 30020, 32984, 34286, 34720, 39184, 40432, 41230, 42028, 44240, 44764, 46531, 47120, 48032, 48980, 50540, 52535, 55955, 57038, 57760, 60040, 65968, 68572, 78337, 78368, 80864, 82460, 84056, 85715, 88480, 89528, 93062, 94240, 97960, 101080, 105070, 111910, 114076, 120080, 131936, 137144, 142595, 156674, 164920, 168112, 171430, 179056, 186124, 195920, 199633, 202160, 210140, 223820, 228152, 232655, 240160, 274288, 285190, 313348, 325717, 329840, 336224, 342860, 358112, 372248, 391685, 391840, 399266, 404320, 420280, 447640, 456304, 465310, 548576, 570380, 626696, 651434, 659680, 685720, 744496, 783370, 798532, 840560, 884089, 895280, 912608, 930620, 998165, 1140760, 1253392, 1302868, 1371440, 1488992, 1566740, 1597064, 1628585, 1681120, 1768178, 1790560, 1861240, 1996330, 2281520, 2506784, 2605736, 2742880, 3133480, 3194128, 3257170, 3536356, 3722480, 3992660, 4420445, 4563040, 5211472, 6188623, 6266960, 6388256, 6514340, 7072712, 7444960, 7985320, 8840890, 10422944, 12377246, 12533920, 13028680, 14145424, 15970640, 17681780, 24754492, 26057360, 28290848, 30943115, 31941280, 35363560, 49508984, 52114720, 61886230, 70727120, 99017968, 123772460, 141454240, 198035936, 247544920, 495089840, 990179680]

約数ペア:

[(1, 990179680), (2, 495089840), (4, 247544920), (5, 198035936), (7, 141454240), (8, 123772460), (10, 99017968), (14, 70727120), (16, 61886230), (19, 52114720), (20, 49508984), (28, 35363560), (31, 31941280), (32, 30943115), (35, 28290848), (38, 26057360), (40, 24754492), (56, 17681780), (62, 15970640), (70, 14145424), (76, 13028680), (79, 12533920), (80, 12377246), (95, 10422944), (112, 8840890), (124, 7985320), (133, 7444960), (140, 7072712), (152, 6514340), (155, 6388256), (158, 6266960), (160, 6188623), (190, 5211472), (217, 4563040), (224, 4420445), (248, 3992660), (266, 3722480), (280, 3536356), (304, 3257170), (310, 3194128), (316, 3133480), (361, 2742880), (380, 2605736), (395, 2506784), (434, 2281520), (496, 1996330), (532, 1861240), (553, 1790560), (560, 1768178), (589, 1681120), (608, 1628585), (620, 1597064), (632, 1566740), (665, 1488992), (722, 1371440), (760, 1302868), (790, 1253392), (868, 1140760), (992, 998165), (1064, 930620), (1085, 912608), (1106, 895280), (1120, 884089), (1178, 840560), (1240, 798532), (1264, 783370), (1330, 744496), (1444, 685720), (1501, 659680), (1520, 651434), (1580, 626696), (1736, 570380), (1805, 548576), (2128, 465310), (2170, 456304), (2212, 447640), (2356, 420280), (2449, 404320), (2480, 399266), (2527, 391840), (2528, 391685), (2660, 372248), (2765, 358112), (2888, 342860), (2945, 336224), (3002, 329840), (3040, 325717), (3160, 313348), (3472, 285190), (3610, 274288), (4123, 240160), (4256, 232655), (4340, 228152), (4424, 223820), (4712, 210140), (4898, 202160), (4960, 199633), (5054, 195920), (5320, 186124), (5530, 179056), (5776, 171430), (5890, 168112), (6004, 164920), (6320, 156674), (6944, 142595), (7220, 137144), (7505, 131936), (8246, 120080), (8680, 114076), (8848, 111910), (9424, 105070), (9796, 101080), (10108, 97960), (10507, 94240), (10640, 93062), (11060, 89528), (11191, 88480), (11552, 85715), (11780, 84056), (12008, 82460), (12245, 80864), (12635, 78368), (12640, 78337), (14440, 68572), (15010, 65968), (16492, 60040), (17143, 57760), (17360, 57038), (17696, 55955), (18848, 52535), (19592, 50540), (20216, 48980), (20615, 48032), (21014, 47120), (21280, 46531), (22120, 44764), (22382, 44240), (23560, 42028), (24016, 41230), (24490, 40432), (25270, 39184), (28519, 34720), (28880, 34286), (30020, 32984)]