28072520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{937}}^1$

素因数の和:1062

約数の個数: 64

約数和(自身を含む): 72938880

約数和(自身を除く): 44866360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 749, 856, 937, 1070, 1498, 1874, 2140, 2996, 3745, 3748, 4280, 4685, 5992, 6559, 7490, 7496, 9370, 13118, 14980, 18740, 26236, 29960, 32795, 37480, 52472, 65590, 100259, 131180, 200518, 262360, 401036, 501295, 701813, 802072, 1002590, 1403626, 2005180, 2807252, 3509065, 4010360, 5614504, 7018130, 14036260, 28072520]

約数ペア:

[(1, 28072520), (2, 14036260), (4, 7018130), (5, 5614504), (7, 4010360), (8, 3509065), (10, 2807252), (14, 2005180), (20, 1403626), (28, 1002590), (35, 802072), (40, 701813), (56, 501295), (70, 401036), (107, 262360), (140, 200518), (214, 131180), (280, 100259), (428, 65590), (535, 52472), (749, 37480), (856, 32795), (937, 29960), (1070, 26236), (1498, 18740), (1874, 14980), (2140, 13118), (2996, 9370), (3745, 7496), (3748, 7490), (4280, 6559), (4685, 5992)]