20800312

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{200003}}^1$

素因数の和:200022

約数の個数: 16

約数和(自身を含む): 42000840

約数和(自身を除く): 21200528

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 200003, 400006, 800012, 1600024, 2600039, 5200078, 10400156, 20800312]

約数ペア:

[(1, 20800312), (2, 10400156), (4, 5200078), (8, 2600039), (13, 1600024), (26, 800012), (52, 400006), (104, 200003)]