20468560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36551}}^1$

素因数の和:36571

約数の個数: 40

約数和(自身を含む): 54389376

約数和(自身を除く): 33920816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36551, 73102, 146204, 182755, 255857, 292408, 365510, 511714, 584816, 731020, 1023428, 1279285, 1462040, 2046856, 2558570, 2924080, 4093712, 5117140, 10234280, 20468560]

約数ペア:

[(1, 20468560), (2, 10234280), (4, 5117140), (5, 4093712), (7, 2924080), (8, 2558570), (10, 2046856), (14, 1462040), (16, 1279285), (20, 1023428), (28, 731020), (35, 584816), (40, 511714), (56, 365510), (70, 292408), (80, 255857), (112, 182755), (140, 146204), (280, 73102), (560, 36551)]