20264735

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 26151840

約数和(自身を除く): 5887105

約数列:

[1, 5, 19, 95, 103, 109, 361, 515, 545, 1805, 1957, 2071, 9785, 10355, 11227, 37183, 39349, 56135, 185915, 196745, 213313, 1066565, 4052947, 20264735]

約数ペア:

[(1, 20264735), (5, 4052947), (19, 1066565), (95, 213313), (103, 196745), (109, 185915), (361, 56135), (515, 39349), (545, 37183), (1805, 11227), (1957, 10355), (2071, 9785)]