161001020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113381}}^1$

素因数の和:113461

約数の個数: 24

約数和(自身を含む): 342867168

約数和(自身を除く): 181866148

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 113381, 226762, 453524, 566905, 1133810, 2267620, 8050051, 16100102, 32200204, 40250255, 80500510, 161001020]

約数ペア:

[(1, 161001020), (2, 80500510), (4, 40250255), (5, 32200204), (10, 16100102), (20, 8050051), (71, 2267620), (142, 1133810), (284, 566905), (355, 453524), (710, 226762), (1420, 113381)]