209529220

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{57881}}^1$

素因数の和:58071

約数の個数: 24

約数和(自身を含む): 442450008

約数和(自身を除く): 232920788

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 57881, 115762, 231524, 289405, 578810, 1157620, 10476461, 20952922, 41905844, 52382305, 104764610, 209529220]

約数ペア:

[(1, 209529220), (2, 104764610), (4, 52382305), (5, 41905844), (10, 20952922), (20, 10476461), (181, 1157620), (362, 578810), (724, 289405), (905, 231524), (1810, 115762), (3620, 57881)]