20172160

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{733}}^1$

素因数の和:795

約数の個数: 64

約数和(自身を含む): 49412880

約数和(自身を除く): 29240720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 733, 860, 1376, 1466, 1720, 2752, 2932, 3440, 3665, 5504, 5864, 6880, 7330, 11728, 13760, 14660, 23456, 27520, 29320, 31519, 46912, 58640, 63038, 93824, 117280, 126076, 157595, 234560, 252152, 315190, 469120, 504304, 630380, 1008608, 1260760, 2017216, 2521520, 4034432, 5043040, 10086080, 20172160]

約数ペア:

[(1, 20172160), (2, 10086080), (4, 5043040), (5, 4034432), (8, 2521520), (10, 2017216), (16, 1260760), (20, 1008608), (32, 630380), (40, 504304), (43, 469120), (64, 315190), (80, 252152), (86, 234560), (128, 157595), (160, 126076), (172, 117280), (215, 93824), (320, 63038), (344, 58640), (430, 46912), (640, 31519), (688, 29320), (733, 27520), (860, 23456), (1376, 14660), (1466, 13760), (1720, 11728), (2752, 7330), (2932, 6880), (3440, 5864), (3665, 5504)]