77981795

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{20021}}^1$

素因数の和:20086

約数の個数: 16

約数和(自身を含む): 100910880

約数和(自身を除く): 22929085

約数列:

[1, 5, 19, 41, 95, 205, 779, 3895, 20021, 100105, 380399, 820861, 1901995, 4104305, 15596359, 77981795]

約数ペア:

[(1, 77981795), (5, 15596359), (19, 4104305), (41, 1901995), (95, 820861), (205, 380399), (779, 100105), (3895, 20021)]