19906690

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4751}}^1$

素因数の和:5177

約数の個数: 16

約数和(自身を含む): 35925120

約数和(自身を除く): 16018430

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 4751, 9502, 23755, 47510, 1990669, 3981338, 9953345, 19906690]

約数ペア:

[(1, 19906690), (2, 9953345), (5, 3981338), (10, 1990669), (419, 47510), (838, 23755), (2095, 9502), (4190, 4751)]