20946320

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2447}}^1$

素因数の和:2567

約数の個数: 40

約数和(自身を含む): 49175424

約数和(自身を除く): 28229104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 2447, 4280, 4894, 8560, 9788, 12235, 19576, 24470, 39152, 48940, 97880, 195760, 261829, 523658, 1047316, 1309145, 2094632, 2618290, 4189264, 5236580, 10473160, 20946320]

約数ペア:

[(1, 20946320), (2, 10473160), (4, 5236580), (5, 4189264), (8, 2618290), (10, 2094632), (16, 1309145), (20, 1047316), (40, 523658), (80, 261829), (107, 195760), (214, 97880), (428, 48940), (535, 39152), (856, 24470), (1070, 19576), (1712, 12235), (2140, 9788), (2447, 8560), (4280, 4894)]