19678225

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4889}}^1$

素因数の和:4929

約数の個数: 24

約数和(自身を含む): 29105280

約数和(自身を除く): 9427055

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 4889, 24445, 34223, 112447, 122225, 171115, 562235, 787129, 855575, 2811175, 3935645, 19678225]

約数ペア:

[(1, 19678225), (5, 3935645), (7, 2811175), (23, 855575), (25, 787129), (35, 562235), (115, 171115), (161, 122225), (175, 112447), (575, 34223), (805, 24445), (4025, 4889)]