2020840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2659}}^1$

素因数の和:2689

約数の個数: 32

約数和(自身を含む): 4788000

約数和(自身を除く): 2767160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 2659, 5318, 10636, 13295, 21272, 26590, 50521, 53180, 101042, 106360, 202084, 252605, 404168, 505210, 1010420, 2020840]

約数ペア:

[(1, 2020840), (2, 1010420), (4, 505210), (5, 404168), (8, 252605), (10, 202084), (19, 106360), (20, 101042), (38, 53180), (40, 50521), (76, 26590), (95, 21272), (152, 13295), (190, 10636), (380, 5318), (760, 2659)]