2854840

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 6480000

約数和(自身を除く): 3625160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 479, 596, 745, 958, 1192, 1490, 1916, 2395, 2980, 3832, 4790, 5960, 9580, 19160, 71371, 142742, 285484, 356855, 570968, 713710, 1427420, 2854840]

約数ペア:

[(1, 2854840), (2, 1427420), (4, 713710), (5, 570968), (8, 356855), (10, 285484), (20, 142742), (40, 71371), (149, 19160), (298, 9580), (479, 5960), (596, 4790), (745, 3832), (958, 2980), (1192, 2395), (1490, 1916)]