9980240

素因数分解:

$2^4\times 5^1\times {\mathrm{124753}}^1$

素因数の和:124766

約数の個数: 20

約数和(自身を含む): 23204244

約数和(自身を除く): 13224004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 124753, 249506, 499012, 623765, 998024, 1247530, 1996048, 2495060, 4990120, 9980240]

約数ペア:

[(1, 9980240), (2, 4990120), (4, 2495060), (5, 1996048), (8, 1247530), (10, 998024), (16, 623765), (20, 499012), (40, 249506), (80, 124753)]