2040200

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^2$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 4790895

約数和(自身を除く): 2750695

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 200, 202, 404, 505, 808, 1010, 2020, 2525, 4040, 5050, 10100, 10201, 20200, 20402, 40804, 51005, 81608, 102010, 204020, 255025, 408040, 510050, 1020100, 2040200]

約数ペア:

[(1, 2040200), (2, 1020100), (4, 510050), (5, 408040), (8, 255025), (10, 204020), (20, 102010), (25, 81608), (40, 51005), (50, 40804), (100, 20402), (101, 20200), (200, 10201), (202, 10100), (404, 5050), (505, 4040), (808, 2525), (1010, 2020)]