20419195

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1301}}^1$

素因数の和:1422

約数の個数: 16

約数和(自身を含む): 25435872

約数和(自身を除く): 5016677

約数列:

[1, 5, 43, 73, 215, 365, 1301, 3139, 6505, 15695, 55943, 94973, 279715, 474865, 4083839, 20419195]

約数ペア:

[(1, 20419195), (5, 4083839), (43, 474865), (73, 279715), (215, 94973), (365, 55943), (1301, 15695), (3139, 6505)]