18654340

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4073}}^1$

素因数の和:4311

約数の個数: 24

約数和(自身を含む): 39354840

約数和(自身を除く): 20700500

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4073, 4580, 8146, 16292, 20365, 40730, 81460, 932717, 1865434, 3730868, 4663585, 9327170, 18654340]

約数ペア:

[(1, 18654340), (2, 9327170), (4, 4663585), (5, 3730868), (10, 1865434), (20, 932717), (229, 81460), (458, 40730), (916, 20365), (1145, 16292), (2290, 8146), (4073, 4580)]