81972605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{8819}}^1$

素因数の和:8861

約数の個数: 24

約数和(自身を含む): 116212320

約数和(自身を除く): 34239715

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 8819, 9295, 44095, 97009, 114647, 485045, 573235, 1261117, 1490411, 6305585, 7452055, 16394521, 81972605]

約数ペア:

[(1, 81972605), (5, 16394521), (11, 7452055), (13, 6305585), (55, 1490411), (65, 1261117), (143, 573235), (169, 485045), (715, 114647), (845, 97009), (1859, 44095), (8819, 9295)]