81325985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{65851}}^1$

素因数の和:65888

約数の個数: 16

約数和(自身を含む): 110631360

約数和(自身を除く): 29305375

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 65851, 329255, 856063, 1251169, 4280315, 6255845, 16265197, 81325985]

約数ペア:

[(1, 81325985), (5, 16265197), (13, 6255845), (19, 4280315), (65, 1251169), (95, 856063), (247, 329255), (1235, 65851)]