20494465

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:692

約数の個数: 16

約数和(自身を含む): 25356240

約数和(自身を除く): 4861775

約数列:

[1, 5, 41, 205, 257, 389, 1285, 1945, 10537, 15949, 52685, 79745, 99973, 499865, 4098893, 20494465]

約数ペア:

[(1, 20494465), (5, 4098893), (41, 499865), (205, 99973), (257, 79745), (389, 52685), (1285, 15949), (1945, 10537)]