78816980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{32569}}^1$

素因数の和:32600

約数の個数: 36

約数和(自身を含む): 181936020

約数和(自身を除く): 103119040

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 32569, 65138, 130276, 162845, 325690, 358259, 651380, 716518, 1433036, 1791295, 3582590, 3940849, 7165180, 7881698, 15763396, 19704245, 39408490, 78816980]

約数ペア:

[(1, 78816980), (2, 39408490), (4, 19704245), (5, 15763396), (10, 7881698), (11, 7165180), (20, 3940849), (22, 3582590), (44, 1791295), (55, 1433036), (110, 716518), (121, 651380), (220, 358259), (242, 325690), (484, 162845), (605, 130276), (1210, 65138), (2420, 32569)]