81728056

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 155543040

約数和(自身を除く): 73814984

約数列:

[1, 2, 4, 8, 127, 254, 257, 313, 508, 514, 626, 1016, 1028, 1252, 2056, 2504, 32639, 39751, 65278, 79502, 80441, 130556, 159004, 160882, 261112, 318008, 321764, 643528, 10216007, 20432014, 40864028, 81728056]

約数ペア:

[(1, 81728056), (2, 40864028), (4, 20432014), (8, 10216007), (127, 643528), (254, 321764), (257, 318008), (313, 261112), (508, 160882), (514, 159004), (626, 130556), (1016, 80441), (1028, 79502), (1252, 65278), (2056, 39751), (2504, 32639)]