40212440

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2239}}^1$

素因数の和:2699

約数の個数: 32

約数和(自身を含む): 90720000

約数和(自身を除く): 50507560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1796, 2239, 2245, 3592, 4478, 4490, 8956, 8980, 11195, 17912, 17960, 22390, 44780, 89560, 1005311, 2010622, 4021244, 5026555, 8042488, 10053110, 20106220, 40212440]

約数ペア:

[(1, 40212440), (2, 20106220), (4, 10053110), (5, 8042488), (8, 5026555), (10, 4021244), (20, 2010622), (40, 1005311), (449, 89560), (898, 44780), (1796, 22390), (2239, 17960), (2245, 17912), (3592, 11195), (4478, 8980), (4490, 8956)]