20828014725

素因数分解:

$3^1\times 5^2\times 7^4\times {\mathrm{115663}}^1$

素因数の和:115704

約数の個数: 60

約数和(自身を含む): 40172883136

約数和(自身を除く): 19344868411

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 175, 245, 343, 525, 735, 1029, 1225, 1715, 2401, 3675, 5145, 7203, 8575, 12005, 25725, 36015, 60025, 115663, 180075, 346989, 578315, 809641, 1734945, 2428923, 2891575, 4048205, 5667487, 8674725, 12144615, 17002461, 20241025, 28337435, 39672409, 60723075, 85012305, 119017227, 141687175, 198362045, 277706863, 425061525, 595086135, 833120589, 991810225, 1388534315, 2975430675, 4165602945, 6942671575, 20828014725]

約数ペア:

[(1, 20828014725), (3, 6942671575), (5, 4165602945), (7, 2975430675), (15, 1388534315), (21, 991810225), (25, 833120589), (35, 595086135), (49, 425061525), (75, 277706863), (105, 198362045), (147, 141687175), (175, 119017227), (245, 85012305), (343, 60723075), (525, 39672409), (735, 28337435), (1029, 20241025), (1225, 17002461), (1715, 12144615), (2401, 8674725), (3675, 5667487), (5145, 4048205), (7203, 2891575), (8575, 2428923), (12005, 1734945), (25725, 809641), (36015, 578315), (60025, 346989), (115663, 180075)]