18778820525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{301789}}^1$

素因数の和:301949

約数の個数: 24

約数和(自身を含む): 24698493600

約数和(自身を除く): 5919673075

約数列:

[1, 5, 19, 25, 95, 131, 475, 655, 2489, 3275, 12445, 62225, 301789, 1508945, 5733991, 7544725, 28669955, 39534359, 143349775, 197671795, 751152821, 988358975, 3755764105, 18778820525]

約数ペア:

[(1, 18778820525), (5, 3755764105), (19, 988358975), (25, 751152821), (95, 197671795), (131, 143349775), (475, 39534359), (655, 28669955), (2489, 7544725), (3275, 5733991), (12445, 1508945), (62225, 301789)]