56531540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217429}}^1$

素因数の和:217451

約数の個数: 24

約数和(自身を含む): 127848840

約数和(自身を除く): 71317300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 217429, 434858, 869716, 1087145, 2174290, 2826577, 4348580, 5653154, 11306308, 14132885, 28265770, 56531540]

約数ペア:

[(1, 56531540), (2, 28265770), (4, 14132885), (5, 11306308), (10, 5653154), (13, 4348580), (20, 2826577), (26, 2174290), (52, 1087145), (65, 869716), (130, 434858), (260, 217429)]