20290075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 27342000

約数和(自身を除く): 7051925

約数列:

[1, 5, 13, 25, 65, 149, 325, 419, 745, 1937, 2095, 3725, 5447, 9685, 10475, 27235, 48425, 62431, 136175, 312155, 811603, 1560775, 4058015, 20290075]

約数ペア:

[(1, 20290075), (5, 4058015), (13, 1560775), (25, 811603), (65, 312155), (149, 136175), (325, 62431), (419, 48425), (745, 27235), (1937, 10475), (2095, 9685), (3725, 5447)]