200420

素因数分解:

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

素因数の和:931

約数の個数: 24

約数和(自身を含む): 459648

約数和(自身を除く): 259228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 911, 1822, 3644, 4555, 9110, 10021, 18220, 20042, 40084, 50105, 100210, 200420]

約数ペア:

[(1, 200420), (2, 100210), (4, 50105), (5, 40084), (10, 20042), (11, 18220), (20, 10021), (22, 9110), (44, 4555), (55, 3644), (110, 1822), (220, 911)]