28701680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{479}}^1$

素因数の和:606

約数の個数: 80

約数和(自身を含む): 77137920

約数和(自身を除く): 48436240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 428, 479, 535, 560, 749, 856, 958, 1070, 1498, 1712, 1916, 2140, 2395, 2996, 3353, 3745, 3832, 4280, 4790, 5992, 6706, 7490, 7664, 8560, 9580, 11984, 13412, 14980, 16765, 19160, 26824, 29960, 33530, 38320, 51253, 53648, 59920, 67060, 102506, 134120, 205012, 256265, 268240, 358771, 410024, 512530, 717542, 820048, 1025060, 1435084, 1793855, 2050120, 2870168, 3587710, 4100240, 5740336, 7175420, 14350840, 28701680]

約数ペア:

[(1, 28701680), (2, 14350840), (4, 7175420), (5, 5740336), (7, 4100240), (8, 3587710), (10, 2870168), (14, 2050120), (16, 1793855), (20, 1435084), (28, 1025060), (35, 820048), (40, 717542), (56, 512530), (70, 410024), (80, 358771), (107, 268240), (112, 256265), (140, 205012), (214, 134120), (280, 102506), (428, 67060), (479, 59920), (535, 53648), (560, 51253), (749, 38320), (856, 33530), (958, 29960), (1070, 26824), (1498, 19160), (1712, 16765), (1916, 14980), (2140, 13412), (2395, 11984), (2996, 9580), (3353, 8560), (3745, 7664), (3832, 7490), (4280, 6706), (4790, 5992)]