81625505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 111767040

約数和(自身を除く): 30141535

約数列:

[1, 5, 13, 23, 65, 71, 115, 299, 355, 769, 923, 1495, 1633, 3845, 4615, 8165, 9997, 17687, 21229, 49985, 54599, 88435, 106145, 229931, 272995, 709787, 1149655, 1255777, 3548935, 6278885, 16325101, 81625505]

約数ペア:

[(1, 81625505), (5, 16325101), (13, 6278885), (23, 3548935), (65, 1255777), (71, 1149655), (115, 709787), (299, 272995), (355, 229931), (769, 106145), (923, 88435), (1495, 54599), (1633, 49985), (3845, 21229), (4615, 17687), (8165, 9997)]