81700444

素因数分解:

$2^2\times 7^2\times {\mathrm{416839}}^1$

素因数の和:416857

約数の個数: 18

約数和(自身を含む): 166319160

約数和(自身を除く): 84618716

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 416839, 833678, 1667356, 2917873, 5835746, 11671492, 20425111, 40850222, 81700444]

約数ペア:

[(1, 81700444), (2, 40850222), (4, 20425111), (7, 11671492), (14, 5835746), (28, 2917873), (49, 1667356), (98, 833678), (196, 416839)]