81947690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{2749}}^1$

素因数の和:3038

約数の個数: 32

約数和(自身を含む): 161568000

約数和(自身を除く): 79620310

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 271, 542, 1355, 2710, 2749, 2981, 5498, 5962, 13745, 14905, 27490, 29810, 30239, 60478, 151195, 302390, 744979, 1489958, 3724895, 7449790, 8194769, 16389538, 40973845, 81947690]

約数ペア:

[(1, 81947690), (2, 40973845), (5, 16389538), (10, 8194769), (11, 7449790), (22, 3724895), (55, 1489958), (110, 744979), (271, 302390), (542, 151195), (1355, 60478), (2710, 30239), (2749, 29810), (2981, 27490), (5498, 14905), (5962, 13745)]