80222020

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{17987}}^1$

素因数の和:18219

約数の個数: 24

約数和(自身を含む): 169231104

約数和(自身を除く): 89009084

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 17987, 35974, 71948, 89935, 179870, 359740, 4011101, 8022202, 16044404, 20055505, 40111010, 80222020]

約数ペア:

[(1, 80222020), (2, 40111010), (4, 20055505), (5, 16044404), (10, 8022202), (20, 4011101), (223, 359740), (446, 179870), (892, 89935), (1115, 71948), (2230, 35974), (4460, 17987)]