18963580

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4177}}^1$

素因数の和:4413

約数の個数: 24

約数和(自身を含む): 40008528

約数和(自身を除く): 21044948

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4177, 4540, 8354, 16708, 20885, 41770, 83540, 948179, 1896358, 3792716, 4740895, 9481790, 18963580]

約数ペア:

[(1, 18963580), (2, 9481790), (4, 4740895), (5, 3792716), (10, 1896358), (20, 948179), (227, 83540), (454, 41770), (908, 20885), (1135, 16708), (2270, 8354), (4177, 4540)]