139898360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499637}}^1$

素因数の和:499655

約数の個数: 32

約数和(自身を含む): 359739360

約数和(自身を除く): 219841000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499637, 999274, 1998548, 2498185, 3497459, 3997096, 4996370, 6994918, 9992740, 13989836, 17487295, 19985480, 27979672, 34974590, 69949180, 139898360]

約数ペア:

[(1, 139898360), (2, 69949180), (4, 34974590), (5, 27979672), (7, 19985480), (8, 17487295), (10, 13989836), (14, 9992740), (20, 6994918), (28, 4996370), (35, 3997096), (40, 3497459), (56, 2498185), (70, 1998548), (140, 999274), (280, 499637)]