128900548

素因数分解:

$2^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{18341}}^1$

素因数の和:18603

約数の個数: 24

約数和(自身を含む): 258842304

約数和(自身を除く): 129941756

約数列:

[1, 2, 4, 7, 14, 28, 251, 502, 1004, 1757, 3514, 7028, 18341, 36682, 73364, 128387, 256774, 513548, 4603591, 9207182, 18414364, 32225137, 64450274, 128900548]

約数ペア:

[(1, 128900548), (2, 64450274), (4, 32225137), (7, 18414364), (14, 9207182), (28, 4603591), (251, 513548), (502, 256774), (1004, 128387), (1757, 73364), (3514, 36682), (7028, 18341)]