77917220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{95021}}^1$

素因数の和:95071

約数の個数: 24

約数和(自身を含む): 167618808

約数和(自身を除く): 89701588

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 95021, 190042, 380084, 475105, 950210, 1900420, 3895861, 7791722, 15583444, 19479305, 38958610, 77917220]

約数ペア:

[(1, 77917220), (2, 38958610), (4, 19479305), (5, 15583444), (10, 7791722), (20, 3895861), (41, 1900420), (82, 950210), (164, 475105), (205, 380084), (410, 190042), (820, 95021)]