8039840

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:585

約数の個数: 48

約数和(自身を含む): 19209960

約数和(自身を除く): 11170120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 461, 545, 872, 922, 1090, 1744, 1844, 2180, 2305, 3488, 3688, 4360, 4610, 7376, 8720, 9220, 14752, 17440, 18440, 36880, 50249, 73760, 100498, 200996, 251245, 401992, 502490, 803984, 1004980, 1607968, 2009960, 4019920, 8039840]

約数ペア:

[(1, 8039840), (2, 4019920), (4, 2009960), (5, 1607968), (8, 1004980), (10, 803984), (16, 502490), (20, 401992), (32, 251245), (40, 200996), (80, 100498), (109, 73760), (160, 50249), (218, 36880), (436, 18440), (461, 17440), (545, 14752), (872, 9220), (922, 8720), (1090, 7376), (1744, 4610), (1844, 4360), (2180, 3688), (2305, 3488)]