51445040

素因数分解:

$2^4\times 5^1\times {\mathrm{709}}^1\times {\mathrm{907}}^1$

素因数の和:1629

約数の個数: 40

約数和(自身を含む): 119910480

約数和(自身を除く): 68465440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 709, 907, 1418, 1814, 2836, 3545, 3628, 4535, 5672, 7090, 7256, 9070, 11344, 14180, 14512, 18140, 28360, 36280, 56720, 72560, 643063, 1286126, 2572252, 3215315, 5144504, 6430630, 10289008, 12861260, 25722520, 51445040]

約数ペア:

[(1, 51445040), (2, 25722520), (4, 12861260), (5, 10289008), (8, 6430630), (10, 5144504), (16, 3215315), (20, 2572252), (40, 1286126), (80, 643063), (709, 72560), (907, 56720), (1418, 36280), (1814, 28360), (2836, 18140), (3545, 14512), (3628, 14180), (4535, 11344), (5672, 9070), (7090, 7256)]