81291688

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{463}}^1\times {\mathrm{1291}}^1$

素因数の和:1777

約数の個数: 32

約数和(自身を含む): 161861760

約数和(自身を除く): 80570072

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 463, 926, 1291, 1852, 2582, 3704, 5164, 7871, 10328, 15742, 21947, 31484, 43894, 62968, 87788, 175576, 597733, 1195466, 2390932, 4781864, 10161461, 20322922, 40645844, 81291688]

約数ペア:

[(1, 81291688), (2, 40645844), (4, 20322922), (8, 10161461), (17, 4781864), (34, 2390932), (68, 1195466), (136, 597733), (463, 175576), (926, 87788), (1291, 62968), (1852, 43894), (2582, 31484), (3704, 21947), (5164, 15742), (7871, 10328)]