81404648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1783}}^1$

素因数の和:2241

約数の個数: 32

約数和(自身を含む): 164841600

約数和(自身を除く): 83436952

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 439, 878, 1756, 1783, 3512, 3566, 5707, 7132, 11414, 14264, 22828, 23179, 45656, 46358, 92716, 185432, 782737, 1565474, 3130948, 6261896, 10175581, 20351162, 40702324, 81404648]

約数ペア:

[(1, 81404648), (2, 40702324), (4, 20351162), (8, 10175581), (13, 6261896), (26, 3130948), (52, 1565474), (104, 782737), (439, 185432), (878, 92716), (1756, 46358), (1783, 45656), (3512, 23179), (3566, 22828), (5707, 14264), (7132, 11414)]