87943140290

素因数分解:

$2^1\times 5^1\times {\mathrm{4001}}^1\times {\mathrm{2198029}}^1$

素因数の和:2202037

約数の個数: 16

約数和(自身を含む): 158337289080

約数和(自身を除く): 70394148790

約数列:

[1, 2, 5, 10, 4001, 8002, 20005, 40010, 2198029, 4396058, 10990145, 21980290, 8794314029, 17588628058, 43971570145, 87943140290]

約数ペア:

[(1, 87943140290), (2, 43971570145), (5, 17588628058), (10, 8794314029), (4001, 21980290), (8002, 10990145), (20005, 4396058), (40010, 2198029)]