81077872

素因数分解:

$2^4\times {\mathrm{1303}}^1\times {\mathrm{3889}}^1$

素因数の和:5200

約数の個数: 20

約数和(自身を含む): 157249360

約数和(自身を除く): 76171488

約数列:

[1, 2, 4, 8, 16, 1303, 2606, 3889, 5212, 7778, 10424, 15556, 20848, 31112, 62224, 5067367, 10134734, 20269468, 40538936, 81077872]

約数ペア:

[(1, 81077872), (2, 40538936), (4, 20269468), (8, 10134734), (16, 5067367), (1303, 62224), (2606, 31112), (3889, 20848), (5212, 15556), (7778, 10424)]