123661915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{457}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 168045696

約数和(自身を除く): 44383781

約数列:

[1, 5, 13, 23, 65, 115, 181, 299, 457, 905, 1495, 2285, 2353, 4163, 5941, 10511, 11765, 20815, 29705, 52555, 54119, 82717, 136643, 270595, 413585, 683215, 1075321, 1902491, 5376605, 9512455, 24732383, 123661915]

約数ペア:

[(1, 123661915), (5, 24732383), (13, 9512455), (23, 5376605), (65, 1902491), (115, 1075321), (181, 683215), (299, 413585), (457, 270595), (905, 136643), (1495, 82717), (2285, 54119), (2353, 52555), (4163, 29705), (5941, 20815), (10511, 11765)]