12736720

素因数分解:

$2^4\times 5^1\times {\mathrm{159209}}^1$

素因数の和:159222

約数の個数: 20

約数和(自身を含む): 29613060

約数和(自身を除く): 16876340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 159209, 318418, 636836, 796045, 1273672, 1592090, 2547344, 3184180, 6368360, 12736720]

約数ペア:

[(1, 12736720), (2, 6368360), (4, 3184180), (5, 2547344), (8, 1592090), (10, 1273672), (16, 796045), (20, 636836), (40, 318418), (80, 159209)]