1665220

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{599}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 3528000

約数和(自身を除く): 1862780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 599, 695, 1198, 1390, 2396, 2780, 2995, 5990, 11980, 83261, 166522, 333044, 416305, 832610, 1665220]

約数ペア:

[(1, 1665220), (2, 832610), (4, 416305), (5, 333044), (10, 166522), (20, 83261), (139, 11980), (278, 5990), (556, 2995), (599, 2780), (695, 2396), (1198, 1390)]