20172520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7103}}^1$

素因数の和:7185

約数の個数: 32

約数和(自身を含む): 46033920

約数和(自身を除く): 25861400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7103, 14206, 28412, 35515, 56824, 71030, 142060, 284120, 504313, 1008626, 2017252, 2521565, 4034504, 5043130, 10086260, 20172520]

約数ペア:

[(1, 20172520), (2, 10086260), (4, 5043130), (5, 4034504), (8, 2521565), (10, 2017252), (20, 1008626), (40, 504313), (71, 284120), (142, 142060), (284, 71030), (355, 56824), (568, 35515), (710, 28412), (1420, 14206), (2840, 7103)]