81504995

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 118959456

約数和(自身を除く): 37454461

約数列:

[1, 5, 11, 13, 43, 55, 65, 121, 143, 215, 241, 473, 559, 605, 715, 1205, 1573, 2365, 2651, 2795, 3133, 5203, 6149, 7865, 10363, 13255, 15665, 26015, 29161, 30745, 34463, 51815, 67639, 113993, 134719, 145805, 172315, 338195, 379093, 569965, 673595, 1253923, 1481909, 1895465, 6269615, 7409545, 16300999, 81504995]

約数ペア:

[(1, 81504995), (5, 16300999), (11, 7409545), (13, 6269615), (43, 1895465), (55, 1481909), (65, 1253923), (121, 673595), (143, 569965), (215, 379093), (241, 338195), (473, 172315), (559, 145805), (605, 134719), (715, 113993), (1205, 67639), (1573, 51815), (2365, 34463), (2651, 30745), (2795, 29161), (3133, 26015), (5203, 15665), (6149, 13255), (7865, 10363)]