9951380

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2749}}^1$

素因数の和:2939

約数の個数: 24

約数和(自身を含む): 21021000

約数和(自身を除く): 11069620

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 2749, 3620, 5498, 10996, 13745, 27490, 54980, 497569, 995138, 1990276, 2487845, 4975690, 9951380]

約数ペア:

[(1, 9951380), (2, 4975690), (4, 2487845), (5, 1990276), (10, 995138), (20, 497569), (181, 54980), (362, 27490), (724, 13745), (905, 10996), (1810, 5498), (2749, 3620)]