253131580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{74891}}^1$

素因数の和:74926

約数の個数: 36

約数和(自身を含む): 575619912

約数和(自身を除く): 322488332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 74891, 149782, 299564, 374455, 748910, 973583, 1497820, 1947166, 3894332, 4867915, 9735830, 12656579, 19471660, 25313158, 50626316, 63282895, 126565790, 253131580]

約数ペア:

[(1, 253131580), (2, 126565790), (4, 63282895), (5, 50626316), (10, 25313158), (13, 19471660), (20, 12656579), (26, 9735830), (52, 4867915), (65, 3894332), (130, 1947166), (169, 1497820), (260, 973583), (338, 748910), (676, 374455), (845, 299564), (1690, 149782), (3380, 74891)]