639851912

素因数分解:

$2^3\times 7^1\times {\mathrm{919}}^1\times {\mathrm{12433}}^1$

素因数の和:13365

約数の個数: 32

約数和(自身を含む): 1372713600

約数和(自身を除く): 732861688

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 919, 1838, 3676, 6433, 7352, 12433, 12866, 24866, 25732, 49732, 51464, 87031, 99464, 174062, 348124, 696248, 11425927, 22851854, 45703708, 79981489, 91407416, 159962978, 319925956, 639851912]

約数ペア:

[(1, 639851912), (2, 319925956), (4, 159962978), (7, 91407416), (8, 79981489), (14, 45703708), (28, 22851854), (56, 11425927), (919, 696248), (1838, 348124), (3676, 174062), (6433, 99464), (7352, 87031), (12433, 51464), (12866, 49732), (24866, 25732)]