161681585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{80239}}^1$

素因数の和:80288

約数の個数: 16

約数和(自身を含む): 215685120

約数和(自身を除く): 54003535

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 80239, 401195, 1043107, 2487409, 5215535, 12437045, 32336317, 161681585]

約数ペア:

[(1, 161681585), (5, 32336317), (13, 12437045), (31, 5215535), (65, 2487409), (155, 1043107), (403, 401195), (2015, 80239)]