18280585

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{907}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 22881600

約数和(自身を除く): 4601015

約数列:

[1, 5, 29, 139, 145, 695, 907, 4031, 4535, 20155, 26303, 126073, 131515, 630365, 3656117, 18280585]

約数ペア:

[(1, 18280585), (5, 3656117), (29, 630365), (139, 131515), (145, 126073), (695, 26303), (907, 20155), (4031, 4535)]