79770980

素因数分解:

$2^2\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{2851}}^1$

素因数の和:4259

約数の個数: 24

約数和(自身を含む): 167697600

約数和(自身を除く): 87926620

約数列:

[1, 2, 4, 5, 10, 20, 1399, 2798, 2851, 5596, 5702, 6995, 11404, 13990, 14255, 27980, 28510, 57020, 3988549, 7977098, 15954196, 19942745, 39885490, 79770980]

約数ペア:

[(1, 79770980), (2, 39885490), (4, 19942745), (5, 15954196), (10, 7977098), (20, 3988549), (1399, 57020), (2798, 28510), (2851, 27980), (5596, 14255), (5702, 13990), (6995, 11404)]