80707775

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 103200240

約数和(自身を除く): 22492465

約数列:

[1, 5, 25, 43, 193, 215, 389, 965, 1075, 1945, 4825, 8299, 9725, 16727, 41495, 75077, 83635, 207475, 375385, 418175, 1876925, 3228311, 16141555, 80707775]

約数ペア:

[(1, 80707775), (5, 16141555), (25, 3228311), (43, 1876925), (193, 418175), (215, 375385), (389, 207475), (965, 83635), (1075, 75077), (1945, 41495), (4825, 16727), (8299, 9725)]