28384720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{557}}^1$

素因数の和:597

約数の個数: 120

約数和(自身を含む): 82822824

約数和(自身を除く): 54438104

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 364, 392, 455, 490, 520, 557, 560, 637, 728, 784, 910, 980, 1040, 1114, 1274, 1456, 1820, 1960, 2228, 2548, 2785, 3185, 3640, 3899, 3920, 4456, 5096, 5570, 6370, 7241, 7280, 7798, 8912, 10192, 11140, 12740, 14482, 15596, 19495, 22280, 25480, 27293, 28964, 31192, 36205, 38990, 44560, 50687, 50960, 54586, 57928, 62384, 72410, 77980, 101374, 109172, 115856, 136465, 144820, 155960, 202748, 218344, 253435, 272930, 289640, 311920, 354809, 405496, 436688, 506870, 545860, 579280, 709618, 810992, 1013740, 1091720, 1419236, 1774045, 2027480, 2183440, 2838472, 3548090, 4054960, 5676944, 7096180, 14192360, 28384720]

約数ペア:

[(1, 28384720), (2, 14192360), (4, 7096180), (5, 5676944), (7, 4054960), (8, 3548090), (10, 2838472), (13, 2183440), (14, 2027480), (16, 1774045), (20, 1419236), (26, 1091720), (28, 1013740), (35, 810992), (40, 709618), (49, 579280), (52, 545860), (56, 506870), (65, 436688), (70, 405496), (80, 354809), (91, 311920), (98, 289640), (104, 272930), (112, 253435), (130, 218344), (140, 202748), (182, 155960), (196, 144820), (208, 136465), (245, 115856), (260, 109172), (280, 101374), (364, 77980), (392, 72410), (455, 62384), (490, 57928), (520, 54586), (557, 50960), (560, 50687), (637, 44560), (728, 38990), (784, 36205), (910, 31192), (980, 28964), (1040, 27293), (1114, 25480), (1274, 22280), (1456, 19495), (1820, 15596), (1960, 14482), (2228, 12740), (2548, 11140), (2785, 10192), (3185, 8912), (3640, 7798), (3899, 7280), (3920, 7241), (4456, 6370), (5096, 5570)]