66471580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{967}}^1$

素因数の和:1474

約数の個数: 48

約数和(自身を含む): 160022016

約数和(自身を除く): 93550436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 967, 982, 1934, 1964, 2455, 3437, 3868, 4835, 4910, 6769, 6874, 9670, 9820, 13538, 13748, 17185, 19340, 27076, 33845, 34370, 67690, 68740, 135380, 474797, 949594, 1899188, 2373985, 3323579, 4747970, 6647158, 9495940, 13294316, 16617895, 33235790, 66471580]

約数ペア:

[(1, 66471580), (2, 33235790), (4, 16617895), (5, 13294316), (7, 9495940), (10, 6647158), (14, 4747970), (20, 3323579), (28, 2373985), (35, 1899188), (70, 949594), (140, 474797), (491, 135380), (967, 68740), (982, 67690), (1934, 34370), (1964, 33845), (2455, 27076), (3437, 19340), (3868, 17185), (4835, 13748), (4910, 13538), (6769, 9820), (6874, 9670)]