20372975

素因数分解:

$5^2\times 7^2\times {\mathrm{16631}}^1$

素因数の和:16655

約数の個数: 18

約数和(自身を含む): 29388744

約数和(自身を除く): 9015769

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 16631, 83155, 116417, 415775, 582085, 814919, 2910425, 4074595, 20372975]

約数ペア:

[(1, 20372975), (5, 4074595), (7, 2910425), (25, 814919), (35, 582085), (49, 415775), (175, 116417), (245, 83155), (1225, 16631)]