18329240

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1783}}^1$

素因数の和:2051

約数の個数: 32

約数和(自身を含む): 41424480

約数和(自身を除く): 23095240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1783, 2056, 2570, 3566, 5140, 7132, 8915, 10280, 14264, 17830, 35660, 71320, 458231, 916462, 1832924, 2291155, 3665848, 4582310, 9164620, 18329240]

約数ペア:

[(1, 18329240), (2, 9164620), (4, 4582310), (5, 3665848), (8, 2291155), (10, 1832924), (20, 916462), (40, 458231), (257, 71320), (514, 35660), (1028, 17830), (1285, 14264), (1783, 10280), (2056, 8915), (2570, 7132), (3566, 5140)]