78829580

素因数分解:

$2^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{5981}}^1$

素因数の和:6649

約数の個数: 24

約数和(自身を含む): 165821040

約数和(自身を除く): 86991460

約数列:

[1, 2, 4, 5, 10, 20, 659, 1318, 2636, 3295, 5981, 6590, 11962, 13180, 23924, 29905, 59810, 119620, 3941479, 7882958, 15765916, 19707395, 39414790, 78829580]

約数ペア:

[(1, 78829580), (2, 39414790), (4, 19707395), (5, 15765916), (10, 7882958), (20, 3941479), (659, 119620), (1318, 59810), (2636, 29905), (3295, 23924), (5981, 13180), (6590, 11962)]