20212270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{859}}^1$

素因数の和:1060

約数の個数: 32

約数和(自身を含む): 39443040

約数和(自身を除く): 19230770

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 181, 362, 859, 905, 1718, 1810, 2353, 4295, 4706, 8590, 11167, 11765, 22334, 23530, 55835, 111670, 155479, 310958, 777395, 1554790, 2021227, 4042454, 10106135, 20212270]

約数ペア:

[(1, 20212270), (2, 10106135), (5, 4042454), (10, 2021227), (13, 1554790), (26, 777395), (65, 310958), (130, 155479), (181, 111670), (362, 55835), (859, 23530), (905, 22334), (1718, 11765), (1810, 11167), (2353, 8590), (4295, 4706)]