81517090

素因数分解:

$2^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{9929}}^1$

素因数の和:10757

約数の個数: 16

約数和(自身を含む): 146924280

約数和(自身を除く): 65407190

約数列:

[1, 2, 5, 10, 821, 1642, 4105, 8210, 9929, 19858, 49645, 99290, 8151709, 16303418, 40758545, 81517090]

約数ペア:

[(1, 81517090), (2, 40758545), (5, 16303418), (10, 8151709), (821, 99290), (1642, 49645), (4105, 19858), (8210, 9929)]