19890012670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{444271}}^1$

素因数の和:444337

約数の個数: 48

約数和(自身を含む): 40416312384

約数和(自身を除く): 20526299714

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 121, 185, 242, 370, 407, 605, 814, 1210, 2035, 4070, 4477, 8954, 22385, 44770, 444271, 888542, 2221355, 4442710, 4886981, 9773962, 16438027, 24434905, 32876054, 48869810, 53756791, 82190135, 107513582, 164380270, 180818297, 268783955, 361636594, 537567910, 904091485, 1808182970, 1989001267, 3978002534, 9945006335, 19890012670]

約数ペア:

[(1, 19890012670), (2, 9945006335), (5, 3978002534), (10, 1989001267), (11, 1808182970), (22, 904091485), (37, 537567910), (55, 361636594), (74, 268783955), (110, 180818297), (121, 164380270), (185, 107513582), (242, 82190135), (370, 53756791), (407, 48869810), (605, 32876054), (814, 24434905), (1210, 16438027), (2035, 9773962), (4070, 4886981), (4477, 4442710), (8954, 2221355), (22385, 888542), (44770, 444271)]