19999970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{105263}}^1$

素因数の和:105289

約数の個数: 16

約数和(自身を含む): 37895040

約数和(自身を除く): 17895070

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 105263, 210526, 526315, 1052630, 1999997, 3999994, 9999985, 19999970]

約数ペア:

[(1, 19999970), (2, 9999985), (5, 3999994), (10, 1999997), (19, 1052630), (38, 526315), (95, 210526), (190, 105263)]