209709140

素因数分解:

$2^2\times 5^1\times {\mathrm{2207}}^1\times {\mathrm{4751}}^1$

素因数の和:6967

約数の個数: 24

約数和(自身を含む): 440681472

約数和(自身を除く): 230972332

約数列:

[1, 2, 4, 5, 10, 20, 2207, 4414, 4751, 8828, 9502, 11035, 19004, 22070, 23755, 44140, 47510, 95020, 10485457, 20970914, 41941828, 52427285, 104854570, 209709140]

約数ペア:

[(1, 209709140), (2, 104854570), (4, 52427285), (5, 41941828), (10, 20970914), (20, 10485457), (2207, 95020), (4414, 47510), (4751, 44140), (8828, 23755), (9502, 22070), (11035, 19004)]