12729820

素因数分解:

$2^2\times 5^1\times {\mathrm{523}}^1\times {\mathrm{1217}}^1$

素因数の和:1749

約数の個数: 24

約数和(自身を含む): 26805744

約数和(自身を除く): 14075924

約数列:

[1, 2, 4, 5, 10, 20, 523, 1046, 1217, 2092, 2434, 2615, 4868, 5230, 6085, 10460, 12170, 24340, 636491, 1272982, 2545964, 3182455, 6364910, 12729820]

約数ペア:

[(1, 12729820), (2, 6364910), (4, 3182455), (5, 2545964), (10, 1272982), (20, 636491), (523, 24340), (1046, 12170), (1217, 10460), (2092, 6085), (2434, 5230), (2615, 4868)]