20195876

素因数分解:

$2^2\times {\mathrm{79}}^2\times {\mathrm{809}}^1$

素因数の和:971

約数の個数: 18

約数和(自身を含む): 35840070

約数和(自身を除く): 15644194

約数列:

[1, 2, 4, 79, 158, 316, 809, 1618, 3236, 6241, 12482, 24964, 63911, 127822, 255644, 5048969, 10097938, 20195876]

約数ペア:

[(1, 20195876), (2, 10097938), (4, 5048969), (79, 255644), (158, 127822), (316, 63911), (809, 24964), (1618, 12482), (3236, 6241)]