78168560

素因数分解:

$2^4\times 5^1\times {\mathrm{977107}}^1$

素因数の和:977120

約数の個数: 20

約数和(自身を含む): 181742088

約数和(自身を除く): 103573528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 977107, 1954214, 3908428, 4885535, 7816856, 9771070, 15633712, 19542140, 39084280, 78168560]

約数ペア:

[(1, 78168560), (2, 39084280), (4, 19542140), (5, 15633712), (8, 9771070), (10, 7816856), (16, 4885535), (20, 3908428), (40, 1954214), (80, 977107)]