209940580

素因数分解:

$2^2\times 5^1\times {\mathrm{1543}}^1\times {\mathrm{6803}}^1$

素因数の和:8355

約数の個数: 24

約数和(自身を含む): 441225792

約数和(自身を除く): 231285212

約数列:

[1, 2, 4, 5, 10, 20, 1543, 3086, 6172, 6803, 7715, 13606, 15430, 27212, 30860, 34015, 68030, 136060, 10497029, 20994058, 41988116, 52485145, 104970290, 209940580]

約数ペア:

[(1, 209940580), (2, 104970290), (4, 52485145), (5, 41988116), (10, 20994058), (20, 10497029), (1543, 136060), (3086, 68030), (6172, 34015), (6803, 30860), (7715, 27212), (13606, 15430)]