20145554455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18231271}}^1$

素因数の和:18231306

約数の個数: 16

約数和(自身を含む): 27565683264

約数和(自身を除く): 7420128809

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18231271, 91156355, 237006523, 309931607, 1185032615, 1549658035, 4029110891, 20145554455]

約数ペア:

[(1, 20145554455), (5, 4029110891), (13, 1549658035), (17, 1185032615), (65, 309931607), (85, 237006523), (221, 91156355), (1105, 18231271)]