3942040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{709}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 8946000

約数和(自身を除く): 5003960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 709, 1112, 1390, 1418, 2780, 2836, 3545, 5560, 5672, 7090, 14180, 28360, 98551, 197102, 394204, 492755, 788408, 985510, 1971020, 3942040]

約数ペア:

[(1, 3942040), (2, 1971020), (4, 985510), (5, 788408), (8, 492755), (10, 394204), (20, 197102), (40, 98551), (139, 28360), (278, 14180), (556, 7090), (695, 5672), (709, 5560), (1112, 3545), (1390, 2836), (1418, 2780)]