72489580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{719}}^1$

素因数の和:870

約数の個数: 36

約数和(自身を含む): 154617120

約数和(自身を除く): 82127540

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 719, 1420, 1438, 2876, 3595, 5041, 7190, 10082, 14380, 20164, 25205, 50410, 51049, 100820, 102098, 204196, 255245, 510490, 1020980, 3624479, 7248958, 14497916, 18122395, 36244790, 72489580]

約数ペア:

[(1, 72489580), (2, 36244790), (4, 18122395), (5, 14497916), (10, 7248958), (20, 3624479), (71, 1020980), (142, 510490), (284, 255245), (355, 204196), (710, 102098), (719, 100820), (1420, 51049), (1438, 50410), (2876, 25205), (3595, 20164), (5041, 14380), (7190, 10082)]