320040160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:369

約数の個数: 144

約数和(自身を含む): 847820736

約数和(自身を除く): 527780576

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 61, 80, 88, 110, 121, 122, 160, 176, 220, 242, 244, 271, 305, 352, 440, 484, 488, 542, 605, 610, 671, 880, 968, 976, 1084, 1210, 1220, 1342, 1355, 1760, 1936, 1952, 2168, 2420, 2440, 2684, 2710, 2981, 3355, 3872, 4336, 4840, 4880, 5368, 5420, 5962, 6710, 7381, 8672, 9680, 9760, 10736, 10840, 11924, 13420, 14762, 14905, 16531, 19360, 21472, 21680, 23848, 26840, 29524, 29810, 32791, 33062, 36905, 43360, 47696, 53680, 59048, 59620, 65582, 66124, 73810, 82655, 95392, 107360, 118096, 119240, 131164, 132248, 147620, 163955, 165310, 181841, 236192, 238480, 262328, 264496, 295240, 327910, 330620, 363682, 476960, 524656, 528992, 590480, 655820, 661240, 727364, 909205, 1049312, 1180960, 1311640, 1322480, 1454728, 1818410, 2000251, 2623280, 2644960, 2909456, 3636820, 4000502, 5246560, 5818912, 7273640, 8001004, 10001255, 14547280, 16002008, 20002510, 29094560, 32004016, 40005020, 64008032, 80010040, 160020080, 320040160]

約数ペア:

[(1, 320040160), (2, 160020080), (4, 80010040), (5, 64008032), (8, 40005020), (10, 32004016), (11, 29094560), (16, 20002510), (20, 16002008), (22, 14547280), (32, 10001255), (40, 8001004), (44, 7273640), (55, 5818912), (61, 5246560), (80, 4000502), (88, 3636820), (110, 2909456), (121, 2644960), (122, 2623280), (160, 2000251), (176, 1818410), (220, 1454728), (242, 1322480), (244, 1311640), (271, 1180960), (305, 1049312), (352, 909205), (440, 727364), (484, 661240), (488, 655820), (542, 590480), (605, 528992), (610, 524656), (671, 476960), (880, 363682), (968, 330620), (976, 327910), (1084, 295240), (1210, 264496), (1220, 262328), (1342, 238480), (1355, 236192), (1760, 181841), (1936, 165310), (1952, 163955), (2168, 147620), (2420, 132248), (2440, 131164), (2684, 119240), (2710, 118096), (2981, 107360), (3355, 95392), (3872, 82655), (4336, 73810), (4840, 66124), (4880, 65582), (5368, 59620), (5420, 59048), (5962, 53680), (6710, 47696), (7381, 43360), (8672, 36905), (9680, 33062), (9760, 32791), (10736, 29810), (10840, 29524), (11924, 26840), (13420, 23848), (14762, 21680), (14905, 21472), (16531, 19360)]