81357016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{2011}}^1$

素因数の和:2419

約数の個数: 32

約数和(自身を含む): 164782800

約数和(自身を除く): 83425784

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 389, 778, 1556, 2011, 3112, 4022, 5057, 8044, 10114, 16088, 20228, 26143, 40456, 52286, 104572, 209144, 782279, 1564558, 3129116, 6258232, 10169627, 20339254, 40678508, 81357016]

約数ペア:

[(1, 81357016), (2, 40678508), (4, 20339254), (8, 10169627), (13, 6258232), (26, 3129116), (52, 1564558), (104, 782279), (389, 209144), (778, 104572), (1556, 52286), (2011, 40456), (3112, 26143), (4022, 20228), (5057, 16088), (8044, 10114)]