639304856

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{247409}}^1$

素因数の和:247451

約数の個数: 32

約数和(自身を含む): 1336014000

約数和(自身を除く): 696709144

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 247409, 494818, 989636, 1979272, 4205953, 4700771, 8411906, 9401542, 16823812, 18803084, 33647624, 37606168, 79913107, 159826214, 319652428, 639304856]

約数ペア:

[(1, 639304856), (2, 319652428), (4, 159826214), (8, 79913107), (17, 37606168), (19, 33647624), (34, 18803084), (38, 16823812), (68, 9401542), (76, 8411906), (136, 4700771), (152, 4205953), (323, 1979272), (646, 989636), (1292, 494818), (2584, 247409)]