81806164

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{977}}^1$

素因数の和:1176

約数の個数: 36

約数和(自身を含む): 158430132

約数和(自身を除く): 76623968

約数列:

[1, 2, 4, 11, 22, 44, 121, 173, 242, 346, 484, 692, 977, 1903, 1954, 3806, 3908, 7612, 10747, 20933, 21494, 41866, 42988, 83732, 118217, 169021, 236434, 338042, 472868, 676084, 1859231, 3718462, 7436924, 20451541, 40903082, 81806164]

約数ペア:

[(1, 81806164), (2, 40903082), (4, 20451541), (11, 7436924), (22, 3718462), (44, 1859231), (121, 676084), (173, 472868), (242, 338042), (346, 236434), (484, 169021), (692, 118217), (977, 83732), (1903, 42988), (1954, 41866), (3806, 21494), (3908, 20933), (7612, 10747)]