12988760

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{733}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 29330640

約数和(自身を除く): 16341880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 733, 886, 1466, 1772, 2215, 2932, 3544, 3665, 4430, 5864, 7330, 8860, 14660, 17720, 29320, 324719, 649438, 1298876, 1623595, 2597752, 3247190, 6494380, 12988760]

約数ペア:

[(1, 12988760), (2, 6494380), (4, 3247190), (5, 2597752), (8, 1623595), (10, 1298876), (20, 649438), (40, 324719), (443, 29320), (733, 17720), (886, 14660), (1466, 8860), (1772, 7330), (2215, 5864), (2932, 4430), (3544, 3665)]