6686840

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{479}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 15120000

約数和(自身を除く): 8433160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 479, 698, 958, 1396, 1745, 1916, 2395, 2792, 3490, 3832, 4790, 6980, 9580, 13960, 19160, 167171, 334342, 668684, 835855, 1337368, 1671710, 3343420, 6686840]

約数ペア:

[(1, 6686840), (2, 3343420), (4, 1671710), (5, 1337368), (8, 835855), (10, 668684), (20, 334342), (40, 167171), (349, 19160), (479, 13960), (698, 9580), (958, 6980), (1396, 4790), (1745, 3832), (1916, 3490), (2395, 2792)]