8372180

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^2$

素因数の和:1303

約数の個数: 18

約数和(自身を含む): 17608794

約数和(自身を除く): 9236614

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6470, 12940, 418609, 837218, 1674436, 2093045, 4186090, 8372180]

約数ペア:

[(1, 8372180), (2, 4186090), (4, 2093045), (5, 1674436), (10, 837218), (20, 418609), (647, 12940), (1294, 6470), (2588, 3235)]