255585638

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 72

約数和(自身を含む): 500805648

約数和(自身を除く): 245220010

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 121, 154, 157, 217, 242, 314, 341, 434, 682, 847, 961, 1099, 1694, 1727, 1922, 2198, 2387, 3454, 3751, 4774, 4867, 6727, 7502, 9734, 10571, 12089, 13454, 18997, 21142, 24178, 26257, 34069, 37994, 52514, 53537, 68138, 73997, 107074, 116281, 132979, 147994, 150877, 232562, 265958, 301754, 374759, 588907, 749518, 813967, 1056139, 1177814, 1627934, 1659647, 2112278, 3319294, 4122349, 8244698, 11617529, 18256117, 23235058, 36512234, 127792819, 255585638]

約数ペア:

[(1, 255585638), (2, 127792819), (7, 36512234), (11, 23235058), (14, 18256117), (22, 11617529), (31, 8244698), (62, 4122349), (77, 3319294), (121, 2112278), (154, 1659647), (157, 1627934), (217, 1177814), (242, 1056139), (314, 813967), (341, 749518), (434, 588907), (682, 374759), (847, 301754), (961, 265958), (1099, 232562), (1694, 150877), (1727, 147994), (1922, 132979), (2198, 116281), (2387, 107074), (3454, 73997), (3751, 68138), (4774, 53537), (4867, 52514), (6727, 37994), (7502, 34069), (9734, 26257), (10571, 24178), (12089, 21142), (13454, 18997)]