20764315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 29647296

約数和(自身を除く): 8882981

約数列:

[1, 5, 11, 13, 55, 65, 113, 143, 257, 565, 715, 1243, 1285, 1469, 2827, 3341, 6215, 7345, 14135, 16159, 16705, 29041, 36751, 80795, 145205, 183755, 319451, 377533, 1597255, 1887665, 4152863, 20764315]

約数ペア:

[(1, 20764315), (5, 4152863), (11, 1887665), (13, 1597255), (55, 377533), (65, 319451), (113, 183755), (143, 145205), (257, 80795), (565, 36751), (715, 29041), (1243, 16705), (1285, 16159), (1469, 14135), (2827, 7345), (3341, 6215)]