15656820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{571}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 44011968

約数和(自身を除く): 28355148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 457, 571, 914, 1142, 1371, 1713, 1828, 2284, 2285, 2742, 2855, 3426, 4570, 5484, 5710, 6852, 6855, 8565, 9140, 11420, 13710, 17130, 27420, 34260, 260947, 521894, 782841, 1043788, 1304735, 1565682, 2609470, 3131364, 3914205, 5218940, 7828410, 15656820]

約数ペア:

[(1, 15656820), (2, 7828410), (3, 5218940), (4, 3914205), (5, 3131364), (6, 2609470), (10, 1565682), (12, 1304735), (15, 1043788), (20, 782841), (30, 521894), (60, 260947), (457, 34260), (571, 27420), (914, 17130), (1142, 13710), (1371, 11420), (1713, 9140), (1828, 8565), (2284, 6855), (2285, 6852), (2742, 5710), (2855, 5484), (3426, 4570)]