83804990

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{20899}}^1$

素因数の和:21307

約数の個数: 16

約数和(自身を含む): 151232400

約数和(自身を除く): 67427410

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 20899, 41798, 104495, 208990, 8380499, 16760998, 41902495, 83804990]

約数ペア:

[(1, 83804990), (2, 41902495), (5, 16760998), (10, 8380499), (401, 208990), (802, 104495), (2005, 41798), (4010, 20899)]