81400984

素因数分解:

$2^3\times 7^1\times {\mathrm{787}}^1\times {\mathrm{1847}}^1$

素因数の和:2647

約数の個数: 32

約数和(自身を含む): 174746880

約数和(自身を除く): 93345896

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 787, 1574, 1847, 3148, 3694, 5509, 6296, 7388, 11018, 12929, 14776, 22036, 25858, 44072, 51716, 103432, 1453589, 2907178, 5814356, 10175123, 11628712, 20350246, 40700492, 81400984]

約数ペア:

[(1, 81400984), (2, 40700492), (4, 20350246), (7, 11628712), (8, 10175123), (14, 5814356), (28, 2907178), (56, 1453589), (787, 103432), (1574, 51716), (1847, 44072), (3148, 25858), (3694, 22036), (5509, 14776), (6296, 12929), (7388, 11018)]