55891420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{214967}}^1$

素因数の和:214989

約数の個数: 24

約数和(自身を含む): 126401184

約数和(自身を除く): 70509764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 214967, 429934, 859868, 1074835, 2149670, 2794571, 4299340, 5589142, 11178284, 13972855, 27945710, 55891420]

約数ペア:

[(1, 55891420), (2, 27945710), (4, 13972855), (5, 11178284), (10, 5589142), (13, 4299340), (20, 2794571), (26, 2149670), (52, 1074835), (65, 859868), (130, 429934), (260, 214967)]