80688640

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{733}}^1$

素因数の和:799

約数の個数: 80

約数和(自身を含む): 198232848

約数和(自身を除く): 117544208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 512, 640, 688, 733, 860, 1280, 1376, 1466, 1720, 2560, 2752, 2932, 3440, 3665, 5504, 5864, 6880, 7330, 11008, 11728, 13760, 14660, 22016, 23456, 27520, 29320, 31519, 46912, 55040, 58640, 63038, 93824, 110080, 117280, 126076, 157595, 187648, 234560, 252152, 315190, 375296, 469120, 504304, 630380, 938240, 1008608, 1260760, 1876480, 2017216, 2521520, 4034432, 5043040, 8068864, 10086080, 16137728, 20172160, 40344320, 80688640]

約数ペア:

[(1, 80688640), (2, 40344320), (4, 20172160), (5, 16137728), (8, 10086080), (10, 8068864), (16, 5043040), (20, 4034432), (32, 2521520), (40, 2017216), (43, 1876480), (64, 1260760), (80, 1008608), (86, 938240), (128, 630380), (160, 504304), (172, 469120), (215, 375296), (256, 315190), (320, 252152), (344, 234560), (430, 187648), (512, 157595), (640, 126076), (688, 117280), (733, 110080), (860, 93824), (1280, 63038), (1376, 58640), (1466, 55040), (1720, 46912), (2560, 31519), (2752, 29320), (2932, 27520), (3440, 23456), (3665, 22016), (5504, 14660), (5864, 13760), (6880, 11728), (7330, 11008)]