20195950

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5689}}^1$

素因数の和:5772

約数の個数: 24

約数和(自身を含む): 38100240

約数和(自身を除く): 17904290

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 5689, 11378, 28445, 56890, 142225, 284450, 403919, 807838, 2019595, 4039190, 10097975, 20195950]

約数ペア:

[(1, 20195950), (2, 10097975), (5, 4039190), (10, 2019595), (25, 807838), (50, 403919), (71, 284450), (142, 142225), (355, 56890), (710, 28445), (1775, 11378), (3550, 5689)]