138040360

素因数分解:

$2^3\times 5^1\times {\mathrm{3451009}}^1$

素因数の和:3451020

約数の個数: 16

約数和(自身を含む): 310590900

約数和(自身を除く): 172550540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3451009, 6902018, 13804036, 17255045, 27608072, 34510090, 69020180, 138040360]

約数ペア:

[(1, 138040360), (2, 69020180), (4, 34510090), (5, 27608072), (8, 17255045), (10, 13804036), (20, 6902018), (40, 3451009)]