20530340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25037}}^1$

素因数の和:25087

約数の個数: 24

約数和(自身を含む): 44167032

約数和(自身を除く): 23636692

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25037, 50074, 100148, 125185, 250370, 500740, 1026517, 2053034, 4106068, 5132585, 10265170, 20530340]

約数ペア:

[(1, 20530340), (2, 10265170), (4, 5132585), (5, 4106068), (10, 2053034), (20, 1026517), (41, 500740), (82, 250370), (164, 125185), (205, 100148), (410, 50074), (820, 25037)]