78828540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{187687}}^1$

素因数の和:187706

約数の個数: 48

約数和(自身を含む): 252252672

約数和(自身を除く): 173424132

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 187687, 375374, 563061, 750748, 938435, 1126122, 1313809, 1876870, 2252244, 2627618, 2815305, 3753740, 3941427, 5255236, 5630610, 6569045, 7882854, 11261220, 13138090, 15765708, 19707135, 26276180, 39414270, 78828540]

約数ペア:

[(1, 78828540), (2, 39414270), (3, 26276180), (4, 19707135), (5, 15765708), (6, 13138090), (7, 11261220), (10, 7882854), (12, 6569045), (14, 5630610), (15, 5255236), (20, 3941427), (21, 3753740), (28, 2815305), (30, 2627618), (35, 2252244), (42, 1876870), (60, 1313809), (70, 1126122), (84, 938435), (105, 750748), (140, 563061), (210, 375374), (420, 187687)]