80718160

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8929}}^1$

素因数の和:9055

約数の個数: 40

約数和(自身を含む): 189351720

約数和(自身を除く): 108633560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 8929, 9040, 17858, 35716, 44645, 71432, 89290, 142864, 178580, 357160, 714320, 1008977, 2017954, 4035908, 5044885, 8071816, 10089770, 16143632, 20179540, 40359080, 80718160]

約数ペア:

[(1, 80718160), (2, 40359080), (4, 20179540), (5, 16143632), (8, 10089770), (10, 8071816), (16, 5044885), (20, 4035908), (40, 2017954), (80, 1008977), (113, 714320), (226, 357160), (452, 178580), (565, 142864), (904, 89290), (1130, 71432), (1808, 44645), (2260, 35716), (4520, 17858), (8929, 9040)]