53681420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{206467}}^1$

素因数の和:206489

約数の個数: 24

約数和(自身を含む): 121403184

約数和(自身を除く): 67721764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 206467, 412934, 825868, 1032335, 2064670, 2684071, 4129340, 5368142, 10736284, 13420355, 26840710, 53681420]

約数ペア:

[(1, 53681420), (2, 26840710), (4, 13420355), (5, 10736284), (10, 5368142), (13, 4129340), (20, 2684071), (26, 2064670), (52, 1032335), (65, 825868), (130, 412934), (260, 206467)]