7921240

素因数分解:

$2^3\times 5^1\times {\mathrm{198031}}^1$

素因数の和:198042

約数の個数: 16

約数和(自身を含む): 17822880

約数和(自身を除く): 9901640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 198031, 396062, 792124, 990155, 1584248, 1980310, 3960620, 7921240]

約数ペア:

[(1, 7921240), (2, 3960620), (4, 1980310), (5, 1584248), (8, 990155), (10, 792124), (20, 396062), (40, 198031)]