20194780

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5641}}^1$

素因数の和:5829

約数の個数: 24

約数和(自身を含む): 42653520

約数和(自身を除く): 22458740

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5641, 11282, 22564, 28205, 56410, 112820, 1009739, 2019478, 4038956, 5048695, 10097390, 20194780]

約数ペア:

[(1, 20194780), (2, 10097390), (4, 5048695), (5, 4038956), (10, 2019478), (20, 1009739), (179, 112820), (358, 56410), (716, 28205), (895, 22564), (1790, 11282), (3580, 5641)]