639221904

素因数分解:

$2^4\times 3^2\times {\mathrm{331}}^1\times {\mathrm{13411}}^1$

素因数の和:13756

約数の個数: 60

約数和(自身を含む): 1794471952

約数和(自身を除く): 1155250048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 331, 662, 993, 1324, 1986, 2648, 2979, 3972, 5296, 5958, 7944, 11916, 13411, 15888, 23832, 26822, 40233, 47664, 53644, 80466, 107288, 120699, 160932, 214576, 241398, 321864, 482796, 643728, 965592, 1931184, 4439041, 8878082, 13317123, 17756164, 26634246, 35512328, 39951369, 53268492, 71024656, 79902738, 106536984, 159805476, 213073968, 319610952, 639221904]

約数ペア:

[(1, 639221904), (2, 319610952), (3, 213073968), (4, 159805476), (6, 106536984), (8, 79902738), (9, 71024656), (12, 53268492), (16, 39951369), (18, 35512328), (24, 26634246), (36, 17756164), (48, 13317123), (72, 8878082), (144, 4439041), (331, 1931184), (662, 965592), (993, 643728), (1324, 482796), (1986, 321864), (2648, 241398), (2979, 214576), (3972, 160932), (5296, 120699), (5958, 107288), (7944, 80466), (11916, 53644), (13411, 47664), (15888, 40233), (23832, 26822)]