81410728

素因数分解:

$2^3\times 7^1\times {\mathrm{431}}^1\times {\mathrm{3373}}^1$

素因数の和:3817

約数の個数: 32

約数和(自身を含む): 174908160

約数和(自身を除く): 93497432

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 431, 862, 1724, 3017, 3373, 3448, 6034, 6746, 12068, 13492, 23611, 24136, 26984, 47222, 94444, 188888, 1453763, 2907526, 5815052, 10176341, 11630104, 20352682, 40705364, 81410728]

約数ペア:

[(1, 81410728), (2, 40705364), (4, 20352682), (7, 11630104), (8, 10176341), (14, 5815052), (28, 2907526), (56, 1453763), (431, 188888), (862, 94444), (1724, 47222), (3017, 26984), (3373, 24136), (3448, 23611), (6034, 13492), (6746, 12068)]