4080640040

素因数分解:

$2^3\times 5^1\times {\mathrm{102016001}}^1$

素因数の和:102016012

約数の個数: 16

約数和(自身を含む): 9181440180

約数和(自身を除く): 5100800140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 102016001, 204032002, 408064004, 510080005, 816128008, 1020160010, 2040320020, 4080640040]

約数ペア:

[(1, 4080640040), (2, 2040320020), (4, 1020160010), (5, 816128008), (8, 510080005), (10, 408064004), (20, 204032002), (40, 102016001)]