81802295

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1759}}^1$

素因数の和:1966

約数の個数: 16

約数和(自身を含む): 100362240

約数和(自身を除く): 18559945

約数列:

[1, 5, 71, 131, 355, 655, 1759, 8795, 9301, 46505, 124889, 230429, 624445, 1152145, 16360459, 81802295]

約数ペア:

[(1, 81802295), (5, 16360459), (71, 1152145), (131, 624445), (355, 230429), (655, 124889), (1759, 46505), (8795, 9301)]