28726250

素因数分解:

$2^1\times 5^4\times 7^3\times {\mathrm{67}}^1$

素因数の和:110

約数の個数: 80

約数和(自身を含む): 63729600

約数和(自身を除く): 35003350

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 67, 70, 98, 125, 134, 175, 245, 250, 335, 343, 350, 469, 490, 625, 670, 686, 875, 938, 1225, 1250, 1675, 1715, 1750, 2345, 2450, 3283, 3350, 3430, 4375, 4690, 6125, 6566, 8375, 8575, 8750, 11725, 12250, 16415, 16750, 17150, 22981, 23450, 30625, 32830, 41875, 42875, 45962, 58625, 61250, 82075, 83750, 85750, 114905, 117250, 164150, 214375, 229810, 293125, 410375, 428750, 574525, 586250, 820750, 1149050, 2051875, 2872625, 4103750, 5745250, 14363125, 28726250]

約数ペア:

[(1, 28726250), (2, 14363125), (5, 5745250), (7, 4103750), (10, 2872625), (14, 2051875), (25, 1149050), (35, 820750), (49, 586250), (50, 574525), (67, 428750), (70, 410375), (98, 293125), (125, 229810), (134, 214375), (175, 164150), (245, 117250), (250, 114905), (335, 85750), (343, 83750), (350, 82075), (469, 61250), (490, 58625), (625, 45962), (670, 42875), (686, 41875), (875, 32830), (938, 30625), (1225, 23450), (1250, 22981), (1675, 17150), (1715, 16750), (1750, 16415), (2345, 12250), (2450, 11725), (3283, 8750), (3350, 8575), (3430, 8375), (4375, 6566), (4690, 6125)]