78537040

素因数分解:

$2^4\times 5^1\times {\mathrm{981713}}^1$

素因数の和:981726

約数の個数: 20

約数和(自身を含む): 182598804

約数和(自身を除く): 104061764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 981713, 1963426, 3926852, 4908565, 7853704, 9817130, 15707408, 19634260, 39268520, 78537040]

約数ペア:

[(1, 78537040), (2, 39268520), (4, 19634260), (5, 15707408), (8, 9817130), (10, 7853704), (16, 4908565), (20, 3926852), (40, 1963426), (80, 981713)]