10820780

素因数分解:

$2^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{821}}^1$

素因数の和:1489

約数の個数: 24

約数和(自身を含む): 22785840

約数和(自身を除く): 11965060

約数列:

[1, 2, 4, 5, 10, 20, 659, 821, 1318, 1642, 2636, 3284, 3295, 4105, 6590, 8210, 13180, 16420, 541039, 1082078, 2164156, 2705195, 5410390, 10820780]

約数ペア:

[(1, 10820780), (2, 5410390), (4, 2705195), (5, 2164156), (10, 1082078), (20, 541039), (659, 16420), (821, 13180), (1318, 8210), (1642, 6590), (2636, 4105), (3284, 3295)]