20242420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{911}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 26641676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 911, 1010, 1111, 1822, 2020, 2222, 3644, 4444, 4555, 5555, 9110, 10021, 11110, 18220, 20042, 22220, 40084, 50105, 92011, 100210, 184022, 200420, 368044, 460055, 920110, 1012121, 1840220, 2024242, 4048484, 5060605, 10121210, 20242420]

約数ペア:

[(1, 20242420), (2, 10121210), (4, 5060605), (5, 4048484), (10, 2024242), (11, 1840220), (20, 1012121), (22, 920110), (44, 460055), (55, 368044), (101, 200420), (110, 184022), (202, 100210), (220, 92011), (404, 50105), (505, 40084), (911, 22220), (1010, 20042), (1111, 18220), (1822, 11110), (2020, 10021), (2222, 9110), (3644, 5555), (4444, 4555)]