54721420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{210467}}^1$

素因数の和:210489

約数の個数: 24

約数和(自身を含む): 123755184

約数和(自身を除く): 69033764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 210467, 420934, 841868, 1052335, 2104670, 2736071, 4209340, 5472142, 10944284, 13680355, 27360710, 54721420]

約数ペア:

[(1, 54721420), (2, 27360710), (4, 13680355), (5, 10944284), (10, 5472142), (13, 4209340), (20, 2736071), (26, 2104670), (52, 1052335), (65, 841868), (130, 420934), (260, 210467)]