12920450

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{3271}}^1$

素因数の和:3362

約数の個数: 24

約数和(自身を含む): 24343680

約数和(自身を除く): 11423230

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 3271, 3950, 6542, 16355, 32710, 81775, 163550, 258409, 516818, 1292045, 2584090, 6460225, 12920450]

約数ペア:

[(1, 12920450), (2, 6460225), (5, 2584090), (10, 1292045), (25, 516818), (50, 258409), (79, 163550), (158, 81775), (395, 32710), (790, 16355), (1975, 6542), (3271, 3950)]