218293820

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{11981}}^1$

素因数の和:12901

約数の個数: 24

約数和(自身を含む): 458958528

約数和(自身を除く): 240664708

約数列:

[1, 2, 4, 5, 10, 20, 911, 1822, 3644, 4555, 9110, 11981, 18220, 23962, 47924, 59905, 119810, 239620, 10914691, 21829382, 43658764, 54573455, 109146910, 218293820]

約数ペア:

[(1, 218293820), (2, 109146910), (4, 54573455), (5, 43658764), (10, 21829382), (20, 10914691), (911, 239620), (1822, 119810), (3644, 59905), (4555, 47924), (9110, 23962), (11981, 18220)]