8678960

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{691}}^1$

素因数の和:861

約数の個数: 40

約数和(自身を含む): 20336496

約数和(自身を除く): 11657536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 691, 785, 1256, 1382, 1570, 2512, 2764, 3140, 3455, 5528, 6280, 6910, 11056, 12560, 13820, 27640, 55280, 108487, 216974, 433948, 542435, 867896, 1084870, 1735792, 2169740, 4339480, 8678960]

約数ペア:

[(1, 8678960), (2, 4339480), (4, 2169740), (5, 1735792), (8, 1084870), (10, 867896), (16, 542435), (20, 433948), (40, 216974), (80, 108487), (157, 55280), (314, 27640), (628, 13820), (691, 12560), (785, 11056), (1256, 6910), (1382, 6280), (1570, 5528), (2512, 3455), (2764, 3140)]