81185203760

素因数分解:

$2^4\times 5^1\times {\mathrm{1014815047}}^1$

素因数の和:1014815060

約数の個数: 20

約数和(自身を含む): 188755598928

約数和(自身を除く): 107570395168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1014815047, 2029630094, 4059260188, 5074075235, 8118520376, 10148150470, 16237040752, 20296300940, 40592601880, 81185203760]

約数ペア:

[(1, 81185203760), (2, 40592601880), (4, 20296300940), (5, 16237040752), (8, 10148150470), (10, 8118520376), (16, 5074075235), (20, 4059260188), (40, 2029630094), (80, 1014815047)]