81120215

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{7057}}^1$

素因数の和:7103

約数の個数: 24

約数和(自身を含む): 112645680

約数和(自身を除く): 31525465

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 605, 1045, 2299, 7057, 11495, 35285, 77627, 134083, 388135, 670415, 853897, 1474913, 4269485, 7374565, 16224043, 81120215]

約数ペア:

[(1, 81120215), (5, 16224043), (11, 7374565), (19, 4269485), (55, 1474913), (95, 853897), (121, 670415), (209, 388135), (605, 134083), (1045, 77627), (2299, 35285), (7057, 11495)]