386960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{691}}^1$

素因数の和:711

約数の個数: 40

約数和(自身を含む): 1029696

約数和(自身を除く): 642736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 691, 1382, 2764, 3455, 4837, 5528, 6910, 9674, 11056, 13820, 19348, 24185, 27640, 38696, 48370, 55280, 77392, 96740, 193480, 386960]

約数ペア:

[(1, 386960), (2, 193480), (4, 96740), (5, 77392), (7, 55280), (8, 48370), (10, 38696), (14, 27640), (16, 24185), (20, 19348), (28, 13820), (35, 11056), (40, 9674), (56, 6910), (70, 5528), (80, 4837), (112, 3455), (140, 2764), (280, 1382), (560, 691)]