100890980

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{11491}}^1$

素因数の和:11939

約数の個数: 24

約数和(自身を含む): 212372160

約数和(自身を除く): 111481180

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 11491, 22982, 45964, 57455, 114910, 229820, 5044549, 10089098, 20178196, 25222745, 50445490, 100890980]

約数ペア:

[(1, 100890980), (2, 50445490), (4, 25222745), (5, 20178196), (10, 10089098), (20, 5044549), (439, 229820), (878, 114910), (1756, 57455), (2195, 45964), (4390, 22982), (8780, 11491)]