20800624

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100003}}^1$

素因数の和:100024

約数の個数: 20

約数和(自身を含む): 43401736

約数和(自身を除く): 22601112

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100003, 200006, 400012, 800024, 1300039, 1600048, 2600078, 5200156, 10400312, 20800624]

約数ペア:

[(1, 20800624), (2, 10400312), (4, 5200156), (8, 2600078), (13, 1600048), (16, 1300039), (26, 800024), (52, 400012), (104, 200006), (208, 100003)]