7784440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2741}}^1$

素因数の和:2823

約数の個数: 32

約数和(自身を含む): 17768160

約数和(自身を除く): 9983720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2741, 2840, 5482, 10964, 13705, 21928, 27410, 54820, 109640, 194611, 389222, 778444, 973055, 1556888, 1946110, 3892220, 7784440]

約数ペア:

[(1, 7784440), (2, 3892220), (4, 1946110), (5, 1556888), (8, 973055), (10, 778444), (20, 389222), (40, 194611), (71, 109640), (142, 54820), (284, 27410), (355, 21928), (568, 13705), (710, 10964), (1420, 5482), (2741, 2840)]