20906660

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14723}}^1$

素因数の和:14803

約数の個数: 24

約数和(自身を含む): 44525376

約数和(自身を除く): 23618716

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14723, 29446, 58892, 73615, 147230, 294460, 1045333, 2090666, 4181332, 5226665, 10453330, 20906660]

約数ペア:

[(1, 20906660), (2, 10453330), (4, 5226665), (5, 4181332), (10, 2090666), (20, 1045333), (71, 294460), (142, 147230), (284, 73615), (355, 58892), (710, 29446), (1420, 14723)]