2668280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1627}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 6153840

約数和(自身を除く): 3485560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1627, 1640, 3254, 6508, 8135, 13016, 16270, 32540, 65080, 66707, 133414, 266828, 333535, 533656, 667070, 1334140, 2668280]

約数ペア:

[(1, 2668280), (2, 1334140), (4, 667070), (5, 533656), (8, 333535), (10, 266828), (20, 133414), (40, 66707), (41, 65080), (82, 32540), (164, 16270), (205, 13016), (328, 8135), (410, 6508), (820, 3254), (1627, 1640)]