396740

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 846720

約数和(自身を除く): 449980

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 239, 332, 415, 478, 830, 956, 1195, 1660, 2390, 4780, 19837, 39674, 79348, 99185, 198370, 396740]

約数ペア:

[(1, 396740), (2, 198370), (4, 99185), (5, 79348), (10, 39674), (20, 19837), (83, 4780), (166, 2390), (239, 1660), (332, 1195), (415, 956), (478, 830)]