81706492

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^2\times {\mathrm{1321}}^1$

素因数の和:1426

約数の個数: 36

約数和(自身を含む): 167090224

約数和(自身を除く): 85383732

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 1321, 2209, 2642, 4418, 5284, 8836, 9247, 15463, 18494, 30926, 36988, 61852, 62087, 124174, 248348, 434609, 869218, 1738436, 2918089, 5836178, 11672356, 20426623, 40853246, 81706492]

約数ペア:

[(1, 81706492), (2, 40853246), (4, 20426623), (7, 11672356), (14, 5836178), (28, 2918089), (47, 1738436), (94, 869218), (188, 434609), (329, 248348), (658, 124174), (1316, 62087), (1321, 61852), (2209, 36988), (2642, 30926), (4418, 18494), (5284, 15463), (8836, 9247)]