20004972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{128237}}^1$

素因数の和:128257

約数の個数: 24

約数和(自身を含む): 50269296

約数和(自身を除く): 30264324

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 128237, 256474, 384711, 512948, 769422, 1538844, 1667081, 3334162, 5001243, 6668324, 10002486, 20004972]

約数ペア:

[(1, 20004972), (2, 10002486), (3, 6668324), (4, 5001243), (6, 3334162), (12, 1667081), (13, 1538844), (26, 769422), (39, 512948), (52, 384711), (78, 256474), (156, 128237)]