79868240

素因数分解:

$2^4\times 5^1\times {\mathrm{998353}}^1$

素因数の和:998366

約数の個数: 20

約数和(自身を含む): 185693844

約数和(自身を除く): 105825604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 998353, 1996706, 3993412, 4991765, 7986824, 9983530, 15973648, 19967060, 39934120, 79868240]

約数ペア:

[(1, 79868240), (2, 39934120), (4, 19967060), (5, 15973648), (8, 9983530), (10, 7986824), (16, 4991765), (20, 3993412), (40, 1996706), (80, 998353)]