20690320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36947}}^1$

素因数の和:36967

約数の個数: 40

約数和(自身を含む): 54978624

約数和(自身を除く): 34288304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36947, 73894, 147788, 184735, 258629, 295576, 369470, 517258, 591152, 738940, 1034516, 1293145, 1477880, 2069032, 2586290, 2955760, 4138064, 5172580, 10345160, 20690320]

約数ペア:

[(1, 20690320), (2, 10345160), (4, 5172580), (5, 4138064), (7, 2955760), (8, 2586290), (10, 2069032), (14, 1477880), (16, 1293145), (20, 1034516), (28, 738940), (35, 591152), (40, 517258), (56, 369470), (70, 295576), (80, 258629), (112, 184735), (140, 147788), (280, 73894), (560, 36947)]