81666080

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{4019}}^1$

素因数の和:4161

約数の個数: 48

約数和(自身を含む): 194503680

約数和(自身を除く): 112837600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4019, 4064, 5080, 8038, 10160, 16076, 20095, 20320, 32152, 40190, 64304, 80380, 128608, 160760, 321520, 510413, 643040, 1020826, 2041652, 2552065, 4083304, 5104130, 8166608, 10208260, 16333216, 20416520, 40833040, 81666080]

約数ペア:

[(1, 81666080), (2, 40833040), (4, 20416520), (5, 16333216), (8, 10208260), (10, 8166608), (16, 5104130), (20, 4083304), (32, 2552065), (40, 2041652), (80, 1020826), (127, 643040), (160, 510413), (254, 321520), (508, 160760), (635, 128608), (1016, 80380), (1270, 64304), (2032, 40190), (2540, 32152), (4019, 20320), (4064, 20095), (5080, 16076), (8038, 10160)]