68787380

素因数分解:

$2^2\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{2441}}^1$

素因数の和:3859

約数の個数: 24

約数和(自身を含む): 144615240

約数和(自身を除く): 75827860

約数列:

[1, 2, 4, 5, 10, 20, 1409, 2441, 2818, 4882, 5636, 7045, 9764, 12205, 14090, 24410, 28180, 48820, 3439369, 6878738, 13757476, 17196845, 34393690, 68787380]

約数ペア:

[(1, 68787380), (2, 34393690), (4, 17196845), (5, 13757476), (10, 6878738), (20, 3439369), (1409, 48820), (2441, 28180), (2818, 24410), (4882, 14090), (5636, 12205), (7045, 9764)]