80906120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{49333}}^1$

素因数の和:49385

約数の個数: 32

約数和(自身を含む): 186482520

約数和(自身を除く): 105576400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 49333, 98666, 197332, 246665, 394664, 493330, 986660, 1973320, 2022653, 4045306, 8090612, 10113265, 16181224, 20226530, 40453060, 80906120]

約数ペア:

[(1, 80906120), (2, 40453060), (4, 20226530), (5, 16181224), (8, 10113265), (10, 8090612), (20, 4045306), (40, 2022653), (41, 1973320), (82, 986660), (164, 493330), (205, 394664), (328, 246665), (410, 197332), (820, 98666), (1640, 49333)]