12781425

素因数分解:

$3^1\times 5^2\times {\mathrm{193}}^1\times {\mathrm{883}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 21265504

約数和(自身を除く): 8484079

約数列:

[1, 3, 5, 15, 25, 75, 193, 579, 883, 965, 2649, 2895, 4415, 4825, 13245, 14475, 22075, 66225, 170419, 511257, 852095, 2556285, 4260475, 12781425]

約数ペア:

[(1, 12781425), (3, 4260475), (5, 2556285), (15, 852095), (25, 511257), (75, 170419), (193, 66225), (579, 22075), (883, 14475), (965, 13245), (2649, 4825), (2895, 4415)]