20619160

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2251}}^1$

素因数の和:2491

約数の個数: 32

約数和(自身を含む): 46616400

約数和(自身を除く): 25997240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2251, 2290, 4502, 4580, 9004, 9160, 11255, 18008, 22510, 45020, 90040, 515479, 1030958, 2061916, 2577395, 4123832, 5154790, 10309580, 20619160]

約数ペア:

[(1, 20619160), (2, 10309580), (4, 5154790), (5, 4123832), (8, 2577395), (10, 2061916), (20, 1030958), (40, 515479), (229, 90040), (458, 45020), (916, 22510), (1145, 18008), (1832, 11255), (2251, 9160), (2290, 9004), (4502, 4580)]