18021040

素因数分解:

$2^4\times 5^1\times {\mathrm{225263}}^1$

素因数の和:225276

約数の個数: 20

約数和(自身を含む): 41899104

約数和(自身を除く): 23878064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 225263, 450526, 901052, 1126315, 1802104, 2252630, 3604208, 4505260, 9010520, 18021040]

約数ペア:

[(1, 18021040), (2, 9010520), (4, 4505260), (5, 3604208), (8, 2252630), (10, 1802104), (16, 1126315), (20, 901052), (40, 450526), (80, 225263)]