78128215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{45823}}^1$

素因数の和:45870

約数の個数: 16

約数和(自身を含む): 105578496

約数和(自身を除く): 27450281

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 45823, 229115, 504053, 1420513, 2520265, 7102565, 15625643, 78128215]

約数ペア:

[(1, 78128215), (5, 15625643), (11, 7102565), (31, 2520265), (55, 1420513), (155, 504053), (341, 229115), (1705, 45823)]