78261160

素因数分解:

$2^3\times 5^1\times {\mathrm{1956529}}^1$

素因数の和:1956540

約数の個数: 16

約数和(自身を含む): 176087700

約数和(自身を除く): 97826540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1956529, 3913058, 7826116, 9782645, 15652232, 19565290, 39130580, 78261160]

約数ペア:

[(1, 78261160), (2, 39130580), (4, 19565290), (5, 15652232), (8, 9782645), (10, 7826116), (20, 3913058), (40, 1956529)]