19805315

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1279}}^1$

素因数の和:1466

約数の個数: 16

約数和(自身を含む): 25190400

約数和(自身を除く): 5385085

約数列:

[1, 5, 19, 95, 163, 815, 1279, 3097, 6395, 15485, 24301, 121505, 208477, 1042385, 3961063, 19805315]

約数ペア:

[(1, 19805315), (5, 3961063), (19, 1042385), (95, 208477), (163, 121505), (815, 24301), (1279, 15485), (3097, 6395)]