20479524

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{71}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 53428032

約数和(自身を除く): 32948508

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 71, 78, 86, 129, 142, 156, 172, 213, 258, 284, 426, 516, 559, 852, 923, 1118, 1677, 1846, 1849, 2236, 2769, 3053, 3354, 3692, 3698, 5538, 5547, 6106, 6708, 7396, 9159, 11076, 11094, 12212, 18318, 22188, 24037, 36636, 39689, 48074, 72111, 79378, 96148, 119067, 131279, 144222, 158756, 238134, 262558, 288444, 393837, 476268, 525116, 787674, 1575348, 1706627, 3413254, 5119881, 6826508, 10239762, 20479524]

約数ペア:

[(1, 20479524), (2, 10239762), (3, 6826508), (4, 5119881), (6, 3413254), (12, 1706627), (13, 1575348), (26, 787674), (39, 525116), (43, 476268), (52, 393837), (71, 288444), (78, 262558), (86, 238134), (129, 158756), (142, 144222), (156, 131279), (172, 119067), (213, 96148), (258, 79378), (284, 72111), (426, 48074), (516, 39689), (559, 36636), (852, 24037), (923, 22188), (1118, 18318), (1677, 12212), (1846, 11094), (1849, 11076), (2236, 9159), (2769, 7396), (3053, 6708), (3354, 6106), (3692, 5547), (3698, 5538)]