839489920

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 256

約数和(自身を含む): 2326579200

約数和(自身を除く): 1487089280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 32, 34, 38, 40, 62, 64, 68, 76, 80, 85, 95, 124, 128, 131, 136, 152, 155, 160, 170, 190, 248, 262, 272, 304, 310, 320, 323, 340, 380, 496, 524, 527, 544, 589, 608, 620, 640, 646, 655, 680, 760, 992, 1048, 1054, 1088, 1178, 1216, 1240, 1292, 1310, 1360, 1520, 1615, 1984, 2096, 2108, 2176, 2227, 2356, 2432, 2480, 2489, 2584, 2620, 2635, 2720, 2945, 3040, 3230, 3968, 4061, 4192, 4216, 4454, 4712, 4960, 4978, 5168, 5240, 5270, 5440, 5890, 6080, 6460, 8122, 8384, 8432, 8908, 9424, 9920, 9956, 10013, 10336, 10480, 10540, 10880, 11135, 11780, 12160, 12445, 12920, 16244, 16768, 16864, 17816, 18848, 19840, 19912, 20026, 20305, 20672, 20960, 21080, 22270, 23560, 24890, 25840, 32488, 33728, 35632, 37696, 39824, 40052, 40610, 41344, 41920, 42160, 42313, 44540, 47120, 49780, 50065, 51680, 64976, 67456, 69037, 71264, 75392, 77159, 79648, 80104, 81220, 83840, 84320, 84626, 89080, 94240, 99560, 100130, 103360, 129952, 138074, 142528, 154318, 159296, 160208, 162440, 168640, 169252, 178160, 188480, 199120, 200260, 206720, 211565, 259904, 276148, 285056, 308636, 318592, 320416, 324880, 337280, 338504, 345185, 356320, 376960, 385795, 398240, 400520, 423130, 519808, 552296, 617272, 640832, 649760, 677008, 690370, 712640, 771590, 796480, 801040, 846260, 1104592, 1234544, 1281664, 1299520, 1311703, 1354016, 1380740, 1425280, 1543180, 1592960, 1602080, 1692520, 2209184, 2469088, 2599040, 2623406, 2708032, 2761480, 3086360, 3204160, 3385040, 4418368, 4938176, 5246812, 5416064, 5522960, 6172720, 6408320, 6558515, 6770080, 8836736, 9876352, 10493624, 11045920, 12345440, 13117030, 13540160, 20987248, 22091840, 24690880, 26234060, 27080320, 41974496, 44183680, 49381760, 52468120, 83948992, 104936240, 167897984, 209872480, 419744960, 839489920]

約数ペア:

[(1, 839489920), (2, 419744960), (4, 209872480), (5, 167897984), (8, 104936240), (10, 83948992), (16, 52468120), (17, 49381760), (19, 44183680), (20, 41974496), (31, 27080320), (32, 26234060), (34, 24690880), (38, 22091840), (40, 20987248), (62, 13540160), (64, 13117030), (68, 12345440), (76, 11045920), (80, 10493624), (85, 9876352), (95, 8836736), (124, 6770080), (128, 6558515), (131, 6408320), (136, 6172720), (152, 5522960), (155, 5416064), (160, 5246812), (170, 4938176), (190, 4418368), (248, 3385040), (262, 3204160), (272, 3086360), (304, 2761480), (310, 2708032), (320, 2623406), (323, 2599040), (340, 2469088), (380, 2209184), (496, 1692520), (524, 1602080), (527, 1592960), (544, 1543180), (589, 1425280), (608, 1380740), (620, 1354016), (640, 1311703), (646, 1299520), (655, 1281664), (680, 1234544), (760, 1104592), (992, 846260), (1048, 801040), (1054, 796480), (1088, 771590), (1178, 712640), (1216, 690370), (1240, 677008), (1292, 649760), (1310, 640832), (1360, 617272), (1520, 552296), (1615, 519808), (1984, 423130), (2096, 400520), (2108, 398240), (2176, 385795), (2227, 376960), (2356, 356320), (2432, 345185), (2480, 338504), (2489, 337280), (2584, 324880), (2620, 320416), (2635, 318592), (2720, 308636), (2945, 285056), (3040, 276148), (3230, 259904), (3968, 211565), (4061, 206720), (4192, 200260), (4216, 199120), (4454, 188480), (4712, 178160), (4960, 169252), (4978, 168640), (5168, 162440), (5240, 160208), (5270, 159296), (5440, 154318), (5890, 142528), (6080, 138074), (6460, 129952), (8122, 103360), (8384, 100130), (8432, 99560), (8908, 94240), (9424, 89080), (9920, 84626), (9956, 84320), (10013, 83840), (10336, 81220), (10480, 80104), (10540, 79648), (10880, 77159), (11135, 75392), (11780, 71264), (12160, 69037), (12445, 67456), (12920, 64976), (16244, 51680), (16768, 50065), (16864, 49780), (17816, 47120), (18848, 44540), (19840, 42313), (19912, 42160), (20026, 41920), (20305, 41344), (20672, 40610), (20960, 40052), (21080, 39824), (22270, 37696), (23560, 35632), (24890, 33728), (25840, 32488)]