388306870

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{113209}}^1$

素因数の和:113237

約数の個数: 32

約数和(自身を含む): 815112000

約数和(自身を除く): 426805130

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 113209, 226418, 566045, 792463, 1132090, 1584926, 3962315, 5547241, 7924630, 11094482, 27736205, 38830687, 55472410, 77661374, 194153435, 388306870]

約数ペア:

[(1, 388306870), (2, 194153435), (5, 77661374), (7, 55472410), (10, 38830687), (14, 27736205), (35, 11094482), (49, 7924630), (70, 5547241), (98, 3962315), (245, 1584926), (343, 1132090), (490, 792463), (686, 566045), (1715, 226418), (3430, 113209)]