128693404

素因数分解:

$2^2\times 7^2\times {\mathrm{656599}}^1$

素因数の和:656617

約数の個数: 18

約数和(自身を含む): 261983400

約数和(自身を除く): 133289996

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 656599, 1313198, 2626396, 4596193, 9192386, 18384772, 32173351, 64346702, 128693404]

約数ペア:

[(1, 128693404), (2, 64346702), (4, 32173351), (7, 18384772), (14, 9192386), (28, 4596193), (49, 2626396), (98, 1313198), (196, 656599)]