66646280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{757}}^1$

素因数の和:870

約数の個数: 64

約数和(自身を含む): 157178880

約数和(自身を除く): 90532600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 757, 1240, 1420, 1514, 2201, 2840, 3028, 3785, 4402, 6056, 7570, 8804, 11005, 15140, 17608, 22010, 23467, 30280, 44020, 46934, 53747, 88040, 93868, 107494, 117335, 187736, 214988, 234670, 268735, 429976, 469340, 537470, 938680, 1074940, 1666157, 2149880, 3332314, 6664628, 8330785, 13329256, 16661570, 33323140, 66646280]

約数ペア:

[(1, 66646280), (2, 33323140), (4, 16661570), (5, 13329256), (8, 8330785), (10, 6664628), (20, 3332314), (31, 2149880), (40, 1666157), (62, 1074940), (71, 938680), (124, 537470), (142, 469340), (155, 429976), (248, 268735), (284, 234670), (310, 214988), (355, 187736), (568, 117335), (620, 107494), (710, 93868), (757, 88040), (1240, 53747), (1420, 46934), (1514, 44020), (2201, 30280), (2840, 23467), (3028, 22010), (3785, 17608), (4402, 15140), (6056, 11005), (7570, 8804)]