291218960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117427}}^1$

素因数の和:117471

約数の個数: 40

約数和(自身を含む): 698931456

約数和(自身を除く): 407712496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 117427, 234854, 469708, 587135, 939416, 1174270, 1878832, 2348540, 3640237, 4697080, 7280474, 9394160, 14560948, 18201185, 29121896, 36402370, 58243792, 72804740, 145609480, 291218960]

約数ペア:

[(1, 291218960), (2, 145609480), (4, 72804740), (5, 58243792), (8, 36402370), (10, 29121896), (16, 18201185), (20, 14560948), (31, 9394160), (40, 7280474), (62, 4697080), (80, 3640237), (124, 2348540), (155, 1878832), (248, 1174270), (310, 939416), (496, 587135), (620, 469708), (1240, 234854), (2480, 117427)]