22420240

素因数分解:

$2^4\times 5^1\times {\mathrm{280253}}^1$

素因数の和:280266

約数の個数: 20

約数和(自身を含む): 52127244

約数和(自身を除く): 29707004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 280253, 560506, 1121012, 1401265, 2242024, 2802530, 4484048, 5605060, 11210120, 22420240]

約数ペア:

[(1, 22420240), (2, 11210120), (4, 5605060), (5, 4484048), (8, 2802530), (10, 2242024), (16, 1401265), (20, 1121012), (40, 560506), (80, 280253)]