126312980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{217781}}^1$

素因数の和:217819

約数の個数: 24

約数和(自身を含む): 274405320

約数和(自身を除く): 148092340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 217781, 435562, 871124, 1088905, 2177810, 4355620, 6315649, 12631298, 25262596, 31578245, 63156490, 126312980]

約数ペア:

[(1, 126312980), (2, 63156490), (4, 31578245), (5, 25262596), (10, 12631298), (20, 6315649), (29, 4355620), (58, 2177810), (116, 1088905), (145, 871124), (290, 435562), (580, 217781)]