1020100

素因数分解:

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

素因数の和:216

約数の個数: 27

約数和(自身を含む): 2235751

約数和(自身を除く): 1215651

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 2020, 2525, 5050, 10100, 10201, 20402, 40804, 51005, 102010, 204020, 255025, 510050, 1020100]

約数ペア:

[(1, 1020100), (2, 510050), (4, 255025), (5, 204020), (10, 102010), (20, 51005), (25, 40804), (50, 20402), (100, 10201), (101, 10100), (202, 5050), (404, 2525), (505, 2020)]