86719780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1979}}^1$

素因数の和:2308

約数の個数: 48

約数和(自身を含む): 208897920

約数和(自身を除く): 122178140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 626, 1252, 1565, 1979, 2191, 3130, 3958, 4382, 6260, 7916, 8764, 9895, 10955, 13853, 19790, 21910, 27706, 39580, 43820, 55412, 69265, 138530, 277060, 619427, 1238854, 2477708, 3097135, 4335989, 6194270, 8671978, 12388540, 17343956, 21679945, 43359890, 86719780]

約数ペア:

[(1, 86719780), (2, 43359890), (4, 21679945), (5, 17343956), (7, 12388540), (10, 8671978), (14, 6194270), (20, 4335989), (28, 3097135), (35, 2477708), (70, 1238854), (140, 619427), (313, 277060), (626, 138530), (1252, 69265), (1565, 55412), (1979, 43820), (2191, 39580), (3130, 27706), (3958, 21910), (4382, 19790), (6260, 13853), (7916, 10955), (8764, 9895)]