99405980

素因数分解:

$2^2\times 5^1\times {\mathrm{2179}}^1\times {\mathrm{2281}}^1$

素因数の和:4469

約数の個数: 24

約数和(自身を含む): 208939920

約数和(自身を除く): 109533940

約数列:

[1, 2, 4, 5, 10, 20, 2179, 2281, 4358, 4562, 8716, 9124, 10895, 11405, 21790, 22810, 43580, 45620, 4970299, 9940598, 19881196, 24851495, 49702990, 99405980]

約数ペア:

[(1, 99405980), (2, 49702990), (4, 24851495), (5, 19881196), (10, 9940598), (20, 4970299), (2179, 45620), (2281, 43580), (4358, 22810), (4562, 21790), (8716, 11405), (9124, 10895)]