82386640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21017}}^1$

素因数の和:21044

約数の個数: 60

約数和(自身を含む): 222832836

約数和(自身を除く): 140446196

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21017, 42034, 84068, 105085, 147119, 168136, 210170, 294238, 336272, 420340, 588476, 735595, 840680, 1029833, 1176952, 1471190, 1681360, 2059666, 2353904, 2942380, 4119332, 5149165, 5884760, 8238664, 10298330, 11769520, 16477328, 20596660, 41193320, 82386640]

約数ペア:

[(1, 82386640), (2, 41193320), (4, 20596660), (5, 16477328), (7, 11769520), (8, 10298330), (10, 8238664), (14, 5884760), (16, 5149165), (20, 4119332), (28, 2942380), (35, 2353904), (40, 2059666), (49, 1681360), (56, 1471190), (70, 1176952), (80, 1029833), (98, 840680), (112, 735595), (140, 588476), (196, 420340), (245, 336272), (280, 294238), (392, 210170), (490, 168136), (560, 147119), (784, 105085), (980, 84068), (1960, 42034), (3920, 21017)]