78276560

素因数分解:

$2^4\times 5^1\times {\mathrm{978457}}^1$

素因数の和:978470

約数の個数: 20

約数和(自身を含む): 181993188

約数和(自身を除く): 103716628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 978457, 1956914, 3913828, 4892285, 7827656, 9784570, 15655312, 19569140, 39138280, 78276560]

約数ペア:

[(1, 78276560), (2, 39138280), (4, 19569140), (5, 15655312), (8, 9784570), (10, 7827656), (16, 4892285), (20, 3913828), (40, 1956914), (80, 978457)]