7089640

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^2$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 15989670

約数和(自身を除く): 8900030

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 177241, 354482, 708964, 886205, 1417928, 1772410, 3544820, 7089640]

約数ペア:

[(1, 7089640), (2, 3544820), (4, 1772410), (5, 1417928), (8, 886205), (10, 708964), (20, 354482), (40, 177241), (421, 16840), (842, 8420), (1684, 4210), (2105, 3368)]