20168965875

素因数分解:

$3^1\times 5^3\times {\mathrm{409}}^1\times {\mathrm{131501}}^1$

素因数の和:131928

約数の個数: 32

約数和(自身を含む): 33643471680

約数和(自身を除く): 13474505805

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 409, 1227, 2045, 6135, 10225, 30675, 51125, 131501, 153375, 394503, 657505, 1972515, 3287525, 9862575, 16437625, 49312875, 53783909, 161351727, 268919545, 806758635, 1344597725, 4033793175, 6722988625, 20168965875]

約数ペア:

[(1, 20168965875), (3, 6722988625), (5, 4033793175), (15, 1344597725), (25, 806758635), (75, 268919545), (125, 161351727), (375, 53783909), (409, 49312875), (1227, 16437625), (2045, 9862575), (6135, 3287525), (10225, 1972515), (30675, 657505), (51125, 394503), (131501, 153375)]