890756875

素因数分解:

$5^4\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:361

約数の個数: 40

約数和(自身を含む): 1143309024

約数和(自身を除く): 252552149

約数列:

[1, 5, 25, 101, 103, 125, 137, 505, 515, 625, 685, 2525, 2575, 3425, 10403, 12625, 12875, 13837, 14111, 17125, 52015, 63125, 64375, 69185, 70555, 85625, 260075, 345925, 352775, 1300375, 1425211, 1729625, 1763875, 6501875, 7126055, 8648125, 8819375, 35630275, 178151375, 890756875]

約数ペア:

[(1, 890756875), (5, 178151375), (25, 35630275), (101, 8819375), (103, 8648125), (125, 7126055), (137, 6501875), (505, 1763875), (515, 1729625), (625, 1425211), (685, 1300375), (2525, 352775), (2575, 345925), (3425, 260075), (10403, 85625), (12625, 70555), (12875, 69185), (13837, 64375), (14111, 63125), (17125, 52015)]