20090815

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{829}}^1$

素因数の和:1002

約数の個数: 16

約数和(自身を含む): 24979680

約数和(自身を除く): 4888865

約数列:

[1, 5, 37, 131, 185, 655, 829, 4145, 4847, 24235, 30673, 108599, 153365, 542995, 4018163, 20090815]

約数ペア:

[(1, 20090815), (5, 4018163), (37, 542995), (131, 153365), (185, 108599), (655, 30673), (829, 24235), (4145, 4847)]