80543216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{387227}}^1$

素因数の和:387248

約数の個数: 20

約数和(自身を含む): 168056952

約数和(自身を除く): 87513736

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 387227, 774454, 1548908, 3097816, 5033951, 6195632, 10067902, 20135804, 40271608, 80543216]

約数ペア:

[(1, 80543216), (2, 40271608), (4, 20135804), (8, 10067902), (13, 6195632), (16, 5033951), (26, 3097816), (52, 1548908), (104, 774454), (208, 387227)]