28391165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1327}}^1$

素因数の和:1732

約数の個数: 16

約数和(自身を含む): 37290240

約数和(自身を除く): 8899075

約数列:

[1, 5, 11, 55, 389, 1327, 1945, 4279, 6635, 14597, 21395, 72985, 516203, 2581015, 5678233, 28391165]

約数ペア:

[(1, 28391165), (5, 5678233), (11, 2581015), (55, 516203), (389, 72985), (1327, 21395), (1945, 14597), (4279, 6635)]