819059905

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{79559}}^1$

素因数の和:79664

約数の個数: 16

約数和(自身を含む): 1031097600

約数和(自身を除く): 212037695

約数列:

[1, 5, 29, 71, 145, 355, 2059, 10295, 79559, 397795, 2307211, 5648689, 11536055, 28243445, 163811981, 819059905]

約数ペア:

[(1, 819059905), (5, 163811981), (29, 28243445), (71, 11536055), (145, 5648689), (355, 2307211), (2059, 397795), (10295, 79559)]