4128980

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{479}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 8709120

約数和(自身を除く): 4580140

約数列:

[1, 2, 4, 5, 10, 20, 431, 479, 862, 958, 1724, 1916, 2155, 2395, 4310, 4790, 8620, 9580, 206449, 412898, 825796, 1032245, 2064490, 4128980]

約数ペア:

[(1, 4128980), (2, 2064490), (4, 1032245), (5, 825796), (10, 412898), (20, 206449), (431, 9580), (479, 8620), (862, 4790), (958, 4310), (1724, 2395), (1916, 2155)]