3638020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1801}}^1$

素因数の和:1911

約数の個数: 24

約数和(自身を含む): 7719768

約数和(自身を除く): 4081748

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1801, 2020, 3602, 7204, 9005, 18010, 36020, 181901, 363802, 727604, 909505, 1819010, 3638020]

約数ペア:

[(1, 3638020), (2, 1819010), (4, 909505), (5, 727604), (10, 363802), (20, 181901), (101, 36020), (202, 18010), (404, 9005), (505, 7204), (1010, 3602), (1801, 2020)]