66777905

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1\times {\mathrm{379}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 81259200

約数和(自身を除く): 14481295

約数列:

[1, 5, 131, 269, 379, 655, 1345, 1895, 35239, 49649, 101951, 176195, 248245, 509755, 13355581, 66777905]

約数ペア:

[(1, 66777905), (5, 13355581), (131, 509755), (269, 248245), (379, 176195), (655, 101951), (1345, 49649), (1895, 35239)]