90273985

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1\times {\mathrm{653}}^1$

素因数の和:1344

約数の個数: 16

約数和(自身を含む): 111190464

約数和(自身を除く): 20916479

約数列:

[1, 5, 43, 215, 643, 653, 3215, 3265, 27649, 28079, 138245, 140395, 419879, 2099395, 18054797, 90273985]

約数ペア:

[(1, 90273985), (5, 18054797), (43, 2099395), (215, 419879), (643, 140395), (653, 138245), (3215, 28079), (3265, 27649)]