1728305180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{398227}}^1$

素因数の和:398274

約数の個数: 48

約数和(自身を含む): 4281747456

約数和(自身を除く): 2553442276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 398227, 796454, 1592908, 1991135, 2787589, 3982270, 5575178, 7964540, 11150356, 12345037, 13937945, 24690074, 27875890, 49380148, 55751780, 61725185, 86415259, 123450370, 172830518, 246900740, 345661036, 432076295, 864152590, 1728305180]

約数ペア:

[(1, 1728305180), (2, 864152590), (4, 432076295), (5, 345661036), (7, 246900740), (10, 172830518), (14, 123450370), (20, 86415259), (28, 61725185), (31, 55751780), (35, 49380148), (62, 27875890), (70, 24690074), (124, 13937945), (140, 12345037), (155, 11150356), (217, 7964540), (310, 5575178), (434, 3982270), (620, 2787589), (868, 1991135), (1085, 1592908), (2170, 796454), (4340, 398227)]