39646780

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2999}}^1$

素因数の和:3669

約数の個数: 24

約数和(自身を含む): 83412000

約数和(自身を除く): 43765220

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 2999, 3305, 5998, 6610, 11996, 13220, 14995, 29990, 59980, 1982339, 3964678, 7929356, 9911695, 19823390, 39646780]

約数ペア:

[(1, 39646780), (2, 19823390), (4, 9911695), (5, 7929356), (10, 3964678), (20, 1982339), (661, 59980), (1322, 29990), (2644, 14995), (2999, 13220), (3305, 11996), (5998, 6610)]