1328740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9491}}^1$

素因数の和:9507

約数の個数: 24

約数和(自身を含む): 3189312

約数和(自身を除く): 1860572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9491, 18982, 37964, 47455, 66437, 94910, 132874, 189820, 265748, 332185, 664370, 1328740]

約数ペア:

[(1, 1328740), (2, 664370), (4, 332185), (5, 265748), (7, 189820), (10, 132874), (14, 94910), (20, 66437), (28, 47455), (35, 37964), (70, 18982), (140, 9491)]