18424720

素因数分解:

$2^4\times 5^1\times {\mathrm{230309}}^1$

素因数の和:230322

約数の個数: 20

約数和(自身を含む): 42837660

約数和(自身を除く): 24412940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230309, 460618, 921236, 1151545, 1842472, 2303090, 3684944, 4606180, 9212360, 18424720]

約数ペア:

[(1, 18424720), (2, 9212360), (4, 4606180), (5, 3684944), (8, 2303090), (10, 1842472), (16, 1151545), (20, 921236), (40, 460618), (80, 230309)]