68928380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{84059}}^1$

素因数の和:84109

約数の個数: 24

約数和(自身を含む): 148281840

約数和(自身を除く): 79353460

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 84059, 168118, 336236, 420295, 840590, 1681180, 3446419, 6892838, 13785676, 17232095, 34464190, 68928380]

約数ペア:

[(1, 68928380), (2, 34464190), (4, 17232095), (5, 13785676), (10, 6892838), (20, 3446419), (41, 1681180), (82, 840590), (164, 420295), (205, 336236), (410, 168118), (820, 84059)]