27870640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 74763072

約数和(自身を除く): 46892432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 317, 560, 628, 634, 785, 1099, 1256, 1268, 1570, 1585, 2198, 2219, 2512, 2536, 3140, 3170, 4396, 4438, 5072, 5495, 6280, 6340, 8792, 8876, 10990, 11095, 12560, 12680, 17584, 17752, 21980, 22190, 25360, 35504, 43960, 44380, 49769, 87920, 88760, 99538, 177520, 199076, 248845, 348383, 398152, 497690, 696766, 796304, 995380, 1393532, 1741915, 1990760, 2787064, 3483830, 3981520, 5574128, 6967660, 13935320, 27870640]

約数ペア:

[(1, 27870640), (2, 13935320), (4, 6967660), (5, 5574128), (7, 3981520), (8, 3483830), (10, 2787064), (14, 1990760), (16, 1741915), (20, 1393532), (28, 995380), (35, 796304), (40, 696766), (56, 497690), (70, 398152), (80, 348383), (112, 248845), (140, 199076), (157, 177520), (280, 99538), (314, 88760), (317, 87920), (560, 49769), (628, 44380), (634, 43960), (785, 35504), (1099, 25360), (1256, 22190), (1268, 21980), (1570, 17752), (1585, 17584), (2198, 12680), (2219, 12560), (2512, 11095), (2536, 10990), (3140, 8876), (3170, 8792), (4396, 6340), (4438, 6280), (5072, 5495)]