17965985

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{859}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 22291200

約数和(自身を除く): 4325215

約数列:

[1, 5, 47, 89, 235, 445, 859, 4183, 4295, 20915, 40373, 76451, 201865, 382255, 3593197, 17965985]

約数ペア:

[(1, 17965985), (5, 3593197), (47, 382255), (89, 201865), (235, 76451), (445, 40373), (859, 20915), (4183, 4295)]