128693320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{459619}}^1$

素因数の和:459637

約数の個数: 32

約数和(自身を含む): 330926400

約数和(自身を除く): 202233080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 459619, 919238, 1838476, 2298095, 3217333, 3676952, 4596190, 6434666, 9192380, 12869332, 16086665, 18384760, 25738664, 32173330, 64346660, 128693320]

約数ペア:

[(1, 128693320), (2, 64346660), (4, 32173330), (5, 25738664), (7, 18384760), (8, 16086665), (10, 12869332), (14, 9192380), (20, 6434666), (28, 4596190), (35, 3676952), (40, 3217333), (56, 2298095), (70, 1838476), (140, 919238), (280, 459619)]