12841520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3733}}^1$

素因数の和:3789

約数の個数: 40

約数和(自身を含む): 30559056

約数和(自身を除く): 17717536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3733, 7466, 14932, 18665, 29864, 37330, 59728, 74660, 149320, 160519, 298640, 321038, 642076, 802595, 1284152, 1605190, 2568304, 3210380, 6420760, 12841520]

約数ペア:

[(1, 12841520), (2, 6420760), (4, 3210380), (5, 2568304), (8, 1605190), (10, 1284152), (16, 802595), (20, 642076), (40, 321038), (43, 298640), (80, 160519), (86, 149320), (172, 74660), (215, 59728), (344, 37330), (430, 29864), (688, 18665), (860, 14932), (1720, 7466), (3440, 3733)]