80177420

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{17977}}^1$

素因数の和:18209

約数の個数: 24

約数和(自身を含む): 169137024

約数和(自身を除く): 88959604

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 17977, 35954, 71908, 89885, 179770, 359540, 4008871, 8017742, 16035484, 20044355, 40088710, 80177420]

約数ペア:

[(1, 80177420), (2, 40088710), (4, 20044355), (5, 16035484), (10, 8017742), (20, 4008871), (223, 359540), (446, 179770), (892, 89885), (1115, 71908), (2230, 35954), (4460, 17977)]