87112720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 214986240

約数和(自身を除く): 127873520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 223, 257, 304, 380, 446, 514, 760, 892, 1028, 1115, 1285, 1520, 1784, 2056, 2230, 2570, 3568, 4112, 4237, 4460, 4883, 5140, 8474, 8920, 9766, 10280, 16948, 17840, 19532, 20560, 21185, 24415, 33896, 39064, 42370, 48830, 57311, 67792, 78128, 84740, 97660, 114622, 169480, 195320, 229244, 286555, 338960, 390640, 458488, 573110, 916976, 1088909, 1146220, 2177818, 2292440, 4355636, 4584880, 5444545, 8711272, 10889090, 17422544, 21778180, 43556360, 87112720]

約数ペア:

[(1, 87112720), (2, 43556360), (4, 21778180), (5, 17422544), (8, 10889090), (10, 8711272), (16, 5444545), (19, 4584880), (20, 4355636), (38, 2292440), (40, 2177818), (76, 1146220), (80, 1088909), (95, 916976), (152, 573110), (190, 458488), (223, 390640), (257, 338960), (304, 286555), (380, 229244), (446, 195320), (514, 169480), (760, 114622), (892, 97660), (1028, 84740), (1115, 78128), (1285, 67792), (1520, 57311), (1784, 48830), (2056, 42370), (2230, 39064), (2570, 33896), (3568, 24415), (4112, 21185), (4237, 20560), (4460, 19532), (4883, 17840), (5140, 16948), (8474, 10280), (8920, 9766)]