639785536

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1579}}^1$

素因数の和:2091

約数の個数: 56

約数和(自身を含む): 1370909120

約数和(自身を除く): 731123584

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 487, 832, 974, 1579, 1948, 3158, 3896, 6316, 6331, 7792, 12632, 12662, 15584, 20527, 25264, 25324, 31168, 41054, 50528, 50648, 82108, 101056, 101296, 164216, 202592, 328432, 405184, 656864, 768973, 1313728, 1537946, 3075892, 6151784, 9996649, 12303568, 19993298, 24607136, 39986596, 49214272, 79973192, 159946384, 319892768, 639785536]

約数ペア:

[(1, 639785536), (2, 319892768), (4, 159946384), (8, 79973192), (13, 49214272), (16, 39986596), (26, 24607136), (32, 19993298), (52, 12303568), (64, 9996649), (104, 6151784), (208, 3075892), (416, 1537946), (487, 1313728), (832, 768973), (974, 656864), (1579, 405184), (1948, 328432), (3158, 202592), (3896, 164216), (6316, 101296), (6331, 101056), (7792, 82108), (12632, 50648), (12662, 50528), (15584, 41054), (20527, 31168), (25264, 25324)]