18923600

素因数分解:

$2^4\times 5^2\times {\mathrm{47309}}^1$

素因数の和:47327

約数の個数: 30

約数和(自身を含む): 45464910

約数和(自身を除く): 26541310

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 47309, 94618, 189236, 236545, 378472, 473090, 756944, 946180, 1182725, 1892360, 2365450, 3784720, 4730900, 9461800, 18923600]

約数ペア:

[(1, 18923600), (2, 9461800), (4, 4730900), (5, 3784720), (8, 2365450), (10, 1892360), (16, 1182725), (20, 946180), (25, 756944), (40, 473090), (50, 378472), (80, 236545), (100, 189236), (200, 94618), (400, 47309)]