817220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1409}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 1776600

約数和(自身を除く): 959380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1409, 2818, 5636, 7045, 14090, 28180, 40861, 81722, 163444, 204305, 408610, 817220]

約数ペア:

[(1, 817220), (2, 408610), (4, 204305), (5, 163444), (10, 81722), (20, 40861), (29, 28180), (58, 14090), (116, 7045), (145, 5636), (290, 2818), (580, 1409)]