26880920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 66528000

約数和(自身を除く): 39647080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 199, 220, 307, 398, 440, 614, 796, 995, 1228, 1535, 1592, 1990, 2189, 2456, 3070, 3377, 3980, 4378, 6140, 6754, 7960, 8756, 10945, 12280, 13508, 16885, 17512, 21890, 27016, 33770, 43780, 61093, 67540, 87560, 122186, 135080, 244372, 305465, 488744, 610930, 672023, 1221860, 1344046, 2443720, 2688092, 3360115, 5376184, 6720230, 13440460, 26880920]

約数ペア:

[(1, 26880920), (2, 13440460), (4, 6720230), (5, 5376184), (8, 3360115), (10, 2688092), (11, 2443720), (20, 1344046), (22, 1221860), (40, 672023), (44, 610930), (55, 488744), (88, 305465), (110, 244372), (199, 135080), (220, 122186), (307, 87560), (398, 67540), (440, 61093), (614, 43780), (796, 33770), (995, 27016), (1228, 21890), (1535, 17512), (1592, 16885), (1990, 13508), (2189, 12280), (2456, 10945), (3070, 8756), (3377, 7960), (3980, 6754), (4378, 6140)]