20199987356

素因数分解:

$2^2\times {\mathrm{281}}^1\times {\mathrm{881}}^1\times {\mathrm{20399}}^1$

素因数の和:21565

約数の個数: 24

約数和(自身を含む): 35517787200

約数和(自身を除く): 15317799844

約数列:

[1, 2, 4, 281, 562, 881, 1124, 1762, 3524, 20399, 40798, 81596, 247561, 495122, 990244, 5732119, 11464238, 17971519, 22928476, 35943038, 71886076, 5049996839, 10099993678, 20199987356]

約数ペア:

[(1, 20199987356), (2, 10099993678), (4, 5049996839), (281, 71886076), (562, 35943038), (881, 22928476), (1124, 17971519), (1762, 11464238), (3524, 5732119), (20399, 990244), (40798, 495122), (81596, 247561)]