20745580

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{17581}}^1$

素因数の和:17649

約数の個数: 24

約数和(自身を含む): 44306640

約数和(自身を除く): 23561060

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 17581, 35162, 70324, 87905, 175810, 351620, 1037279, 2074558, 4149116, 5186395, 10372790, 20745580]

約数ペア:

[(1, 20745580), (2, 10372790), (4, 5186395), (5, 4149116), (10, 2074558), (20, 1037279), (59, 351620), (118, 175810), (236, 87905), (295, 70324), (590, 35162), (1180, 17581)]