20188810

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{1201}}^1$

素因数の和:1290

約数の個数: 24

約数和(自身を含む): 37278828

約数和(自身を除く): 17090018

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 1201, 1681, 2402, 3362, 6005, 8405, 12010, 16810, 49241, 98482, 246205, 492410, 2018881, 4037762, 10094405, 20188810]

約数ペア:

[(1, 20188810), (2, 10094405), (5, 4037762), (10, 2018881), (41, 492410), (82, 246205), (205, 98482), (410, 49241), (1201, 16810), (1681, 12010), (2402, 8405), (3362, 6005)]