12556420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21649}}^1$

素因数の和:21687

約数の個数: 24

約数和(自身を含む): 27279000

約数和(自身を除く): 14722580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 21649, 43298, 86596, 108245, 216490, 432980, 627821, 1255642, 2511284, 3139105, 6278210, 12556420]

約数ペア:

[(1, 12556420), (2, 6278210), (4, 3139105), (5, 2511284), (10, 1255642), (20, 627821), (29, 432980), (58, 216490), (116, 108245), (145, 86596), (290, 43298), (580, 21649)]