40746440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20789}}^1$

素因数の和:20814

約数の個数: 48

約数和(自身を含む): 106652700

約数和(自身を除く): 65906260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20789, 41578, 83156, 103945, 145523, 166312, 207890, 291046, 415780, 582092, 727615, 831560, 1018661, 1164184, 1455230, 2037322, 2910460, 4074644, 5093305, 5820920, 8149288, 10186610, 20373220, 40746440]

約数ペア:

[(1, 40746440), (2, 20373220), (4, 10186610), (5, 8149288), (7, 5820920), (8, 5093305), (10, 4074644), (14, 2910460), (20, 2037322), (28, 1455230), (35, 1164184), (40, 1018661), (49, 831560), (56, 727615), (70, 582092), (98, 415780), (140, 291046), (196, 207890), (245, 166312), (280, 145523), (392, 103945), (490, 83156), (980, 41578), (1960, 20789)]