81246784

素因数分解:

$2^6\times {\mathrm{31}}^2\times {\mathrm{1321}}^1$

素因数の和:1395

約数の個数: 42

約数和(自身を含む): 166718742

約数和(自身を除く): 85471958

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 961, 992, 1321, 1922, 1984, 2642, 3844, 5284, 7688, 10568, 15376, 21136, 30752, 40951, 42272, 61504, 81902, 84544, 163804, 327608, 655216, 1269481, 1310432, 2538962, 2620864, 5077924, 10155848, 20311696, 40623392, 81246784]

約数ペア:

[(1, 81246784), (2, 40623392), (4, 20311696), (8, 10155848), (16, 5077924), (31, 2620864), (32, 2538962), (62, 1310432), (64, 1269481), (124, 655216), (248, 327608), (496, 163804), (961, 84544), (992, 81902), (1321, 61504), (1922, 42272), (1984, 40951), (2642, 30752), (3844, 21136), (5284, 15376), (7688, 10568)]