1721180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2099}}^1$

素因数の和:2149

約数の個数: 24

約数和(自身を含む): 3704400

約数和(自身を除く): 1983220

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2099, 4198, 8396, 10495, 20990, 41980, 86059, 172118, 344236, 430295, 860590, 1721180]

約数ペア:

[(1, 1721180), (2, 860590), (4, 430295), (5, 344236), (10, 172118), (20, 86059), (41, 41980), (82, 20990), (164, 10495), (205, 8396), (410, 4198), (820, 2099)]