25721215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{5009}}^1$

素因数の和:5106

約数の個数: 16

約数和(自身を含む): 33667200

約数和(自身を除く): 7945985

約数列:

[1, 5, 13, 65, 79, 395, 1027, 5009, 5135, 25045, 65117, 325585, 395711, 1978555, 5144243, 25721215]

約数ペア:

[(1, 25721215), (5, 5144243), (13, 1978555), (65, 395711), (79, 325585), (395, 65117), (1027, 25045), (5009, 5135)]