81316728

素因数分解:

$2^3\times 3^2\times {\mathrm{1129399}}^1$

素因数の和:1129411

約数の個数: 24

約数和(自身を含む): 220233000

約数和(自身を除く): 138916272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 1129399, 2258798, 3388197, 4517596, 6776394, 9035192, 10164591, 13552788, 20329182, 27105576, 40658364, 81316728]

約数ペア:

[(1, 81316728), (2, 40658364), (3, 27105576), (4, 20329182), (6, 13552788), (8, 10164591), (9, 9035192), (12, 6776394), (18, 4517596), (24, 3388197), (36, 2258798), (72, 1129399)]