79400680

素因数分解:

$2^3\times 5^1\times {\mathrm{1985017}}^1$

素因数の和:1985028

約数の個数: 16

約数和(自身を含む): 178651620

約数和(自身を除く): 99250940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1985017, 3970034, 7940068, 9925085, 15880136, 19850170, 39700340, 79400680]

約数ペア:

[(1, 79400680), (2, 39700340), (4, 19850170), (5, 15880136), (8, 9925085), (10, 7940068), (20, 3970034), (40, 1985017)]