8201780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 18144000

約数和(自身を除く): 9942220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 179, 290, 316, 358, 395, 580, 716, 790, 895, 1580, 1790, 2291, 3580, 4582, 5191, 9164, 10382, 11455, 14141, 20764, 22910, 25955, 28282, 45820, 51910, 56564, 70705, 103820, 141410, 282820, 410089, 820178, 1640356, 2050445, 4100890, 8201780]

約数ペア:

[(1, 8201780), (2, 4100890), (4, 2050445), (5, 1640356), (10, 820178), (20, 410089), (29, 282820), (58, 141410), (79, 103820), (116, 70705), (145, 56564), (158, 51910), (179, 45820), (290, 28282), (316, 25955), (358, 22910), (395, 20764), (580, 14141), (716, 11455), (790, 10382), (895, 9164), (1580, 5191), (1790, 4582), (2291, 3580)]