80894288

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{20143}}^1$

素因数の和:20402

約数の個数: 20

約数和(自身を含む): 157364928

約数和(自身を除く): 76470640

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 20143, 40286, 80572, 161144, 322288, 5055893, 10111786, 20223572, 40447144, 80894288]

約数ペア:

[(1, 80894288), (2, 40447144), (4, 20223572), (8, 10111786), (16, 5055893), (251, 322288), (502, 161144), (1004, 80572), (2008, 40286), (4016, 20143)]