25808360

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1609}}^1$

素因数の和:2021

約数の個数: 32

約数和(自身を含む): 58249800

約数和(自身を除く): 32441440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 1609, 2005, 3208, 3218, 4010, 6436, 8020, 8045, 12872, 16040, 16090, 32180, 64360, 645209, 1290418, 2580836, 3226045, 5161672, 6452090, 12904180, 25808360]

約数ペア:

[(1, 25808360), (2, 12904180), (4, 6452090), (5, 5161672), (8, 3226045), (10, 2580836), (20, 1290418), (40, 645209), (401, 64360), (802, 32180), (1604, 16090), (1609, 16040), (2005, 12872), (3208, 8045), (3218, 8020), (4010, 6436)]