20420450

素因数分解:

$2^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{2741}}^1$

素因数の和:2902

約数の個数: 24

約数和(自身を含む): 38250900

約数和(自身を除く): 17830450

約数列:

[1, 2, 5, 10, 25, 50, 149, 298, 745, 1490, 2741, 3725, 5482, 7450, 13705, 27410, 68525, 137050, 408409, 816818, 2042045, 4084090, 10210225, 20420450]

約数ペア:

[(1, 20420450), (2, 10210225), (5, 4084090), (10, 2042045), (25, 816818), (50, 408409), (149, 137050), (298, 68525), (745, 27410), (1490, 13705), (2741, 7450), (3725, 5482)]