2172020

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{487}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 4591104

約数和(自身を除く): 2419084

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 487, 892, 974, 1115, 1948, 2230, 2435, 4460, 4870, 9740, 108601, 217202, 434404, 543005, 1086010, 2172020]

約数ペア:

[(1, 2172020), (2, 1086010), (4, 543005), (5, 434404), (10, 217202), (20, 108601), (223, 9740), (446, 4870), (487, 4460), (892, 2435), (974, 2230), (1115, 1948)]