81491805

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{14723}}^1$

素因数の和:14778

約数の個数: 32

約数和(自身を含む): 148417920

約数和(自身を除く): 66926115

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 5535, 14723, 44169, 73615, 132507, 220845, 397521, 603643, 662535, 1810929, 1987605, 3018215, 5432787, 9054645, 16298361, 27163935, 81491805]

約数ペア:

[(1, 81491805), (3, 27163935), (5, 16298361), (9, 9054645), (15, 5432787), (27, 3018215), (41, 1987605), (45, 1810929), (123, 662535), (135, 603643), (205, 397521), (369, 220845), (615, 132507), (1107, 73615), (1845, 44169), (5535, 14723)]