20845190

素因数分解:

$2^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2539}}^1$

素因数の和:3367

約数の個数: 16

約数和(自身を含む): 37581840

約数和(自身を除く): 16736650

約数列:

[1, 2, 5, 10, 821, 1642, 2539, 4105, 5078, 8210, 12695, 25390, 2084519, 4169038, 10422595, 20845190]

約数ペア:

[(1, 20845190), (2, 10422595), (5, 4169038), (10, 2084519), (821, 25390), (1642, 12695), (2539, 8210), (4105, 5078)]