12904180

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1609}}^1$

素因数の和:2019

約数の個数: 24

約数和(自身を含む): 27183240

約数和(自身を除く): 14279060

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 1609, 2005, 3218, 4010, 6436, 8020, 8045, 16090, 32180, 645209, 1290418, 2580836, 3226045, 6452090, 12904180]

約数ペア:

[(1, 12904180), (2, 6452090), (4, 3226045), (5, 2580836), (10, 1290418), (20, 645209), (401, 32180), (802, 16090), (1604, 8045), (1609, 8020), (2005, 6436), (3218, 4010)]