161981885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{35099}}^1$

素因数の和:35188

約数の個数: 16

約数和(自身を含む): 212284800

約数和(自身を除く): 50302915

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 35099, 175495, 456287, 2281435, 2492029, 12460145, 32396377, 161981885]

約数ペア:

[(1, 161981885), (5, 32396377), (13, 12460145), (65, 2492029), (71, 2281435), (355, 456287), (923, 175495), (4615, 35099)]