20187620

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5639}}^1$

素因数の和:5827

約数の個数: 24

約数和(自身を含む): 42638400

約数和(自身を除く): 22450780

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5639, 11278, 22556, 28195, 56390, 112780, 1009381, 2018762, 4037524, 5046905, 10093810, 20187620]

約数ペア:

[(1, 20187620), (2, 10093810), (4, 5046905), (5, 4037524), (10, 2018762), (20, 1009381), (179, 112780), (358, 56390), (716, 28195), (895, 22556), (1790, 11278), (3580, 5639)]