18123760

素因数分解:

$2^4\times 5^1\times {\mathrm{226547}}^1$

素因数の和:226560

約数の個数: 20

約数和(自身を含む): 42137928

約数和(自身を除く): 24014168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 226547, 453094, 906188, 1132735, 1812376, 2265470, 3624752, 4530940, 9061880, 18123760]

約数ペア:

[(1, 18123760), (2, 9061880), (4, 4530940), (5, 3624752), (8, 2265470), (10, 1812376), (16, 1132735), (20, 906188), (40, 453094), (80, 226547)]