64156780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{43943}}^1$

素因数の和:44025

約数の個数: 24

約数和(自身を含む): 136577952

約数和(自身を除く): 72421172

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 43943, 87886, 175772, 219715, 439430, 878860, 3207839, 6415678, 12831356, 16039195, 32078390, 64156780]

約数ペア:

[(1, 64156780), (2, 32078390), (4, 16039195), (5, 12831356), (10, 6415678), (20, 3207839), (73, 878860), (146, 439430), (292, 219715), (365, 175772), (730, 87886), (1460, 43943)]