18840080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1979}}^1$

素因数の和:2016

約数の個数: 80

約数和(自身を含む): 53032320

約数和(自身を除く): 34192240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 1979, 2380, 3958, 4760, 7916, 9520, 9895, 13853, 15832, 19790, 27706, 31664, 33643, 39580, 55412, 67286, 69265, 79160, 110824, 134572, 138530, 158320, 168215, 221648, 235501, 269144, 277060, 336430, 471002, 538288, 554120, 672860, 942004, 1108240, 1177505, 1345720, 1884008, 2355010, 2691440, 3768016, 4710020, 9420040, 18840080]

約数ペア:

[(1, 18840080), (2, 9420040), (4, 4710020), (5, 3768016), (7, 2691440), (8, 2355010), (10, 1884008), (14, 1345720), (16, 1177505), (17, 1108240), (20, 942004), (28, 672860), (34, 554120), (35, 538288), (40, 471002), (56, 336430), (68, 277060), (70, 269144), (80, 235501), (85, 221648), (112, 168215), (119, 158320), (136, 138530), (140, 134572), (170, 110824), (238, 79160), (272, 69265), (280, 67286), (340, 55412), (476, 39580), (560, 33643), (595, 31664), (680, 27706), (952, 19790), (1190, 15832), (1360, 13853), (1904, 9895), (1979, 9520), (2380, 7916), (3958, 4760)]