81087580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{579197}}^1$

素因数の和:579213

約数の個数: 24

約数和(自身を含む): 194610528

約数和(自身を除く): 113522948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 579197, 1158394, 2316788, 2895985, 4054379, 5791970, 8108758, 11583940, 16217516, 20271895, 40543790, 81087580]

約数ペア:

[(1, 81087580), (2, 40543790), (4, 20271895), (5, 16217516), (7, 11583940), (10, 8108758), (14, 5791970), (20, 4054379), (28, 2895985), (35, 2316788), (70, 1158394), (140, 579197)]