81637985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{8783}}^1$

素因数の和:8825

約数の個数: 24

約数和(自身を含む): 115737984

約数和(自身を除く): 34099999

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 8783, 9295, 43915, 96613, 114179, 483065, 570895, 1255969, 1484327, 6279845, 7421635, 16327597, 81637985]

約数ペア:

[(1, 81637985), (5, 16327597), (11, 7421635), (13, 6279845), (55, 1484327), (65, 1255969), (143, 570895), (169, 483065), (715, 114179), (845, 96613), (1859, 43915), (8783, 9295)]