80660720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144037}}^1$

素因数の和:144057

約数の個数: 40

約数和(自身を含む): 214328544

約数和(自身を除く): 133667824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144037, 288074, 576148, 720185, 1008259, 1152296, 1440370, 2016518, 2304592, 2880740, 4033036, 5041295, 5761480, 8066072, 10082590, 11522960, 16132144, 20165180, 40330360, 80660720]

約数ペア:

[(1, 80660720), (2, 40330360), (4, 20165180), (5, 16132144), (7, 11522960), (8, 10082590), (10, 8066072), (14, 5761480), (16, 5041295), (20, 4033036), (28, 2880740), (35, 2304592), (40, 2016518), (56, 1440370), (70, 1152296), (80, 1008259), (112, 720185), (140, 576148), (280, 288074), (560, 144037)]