277788490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{263}}^1$

素因数の和:547

約数の個数: 64

約数和(自身を含む): 583925760

約数和(自身を除く): 306137270

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 191, 263, 382, 395, 526, 553, 790, 955, 1106, 1315, 1337, 1841, 1910, 2630, 2674, 2765, 3682, 5530, 6685, 9205, 13370, 15089, 18410, 20777, 30178, 41554, 50233, 75445, 100466, 103885, 105623, 145439, 150890, 207770, 211246, 251165, 290878, 351631, 502330, 528115, 703262, 727195, 1056230, 1454390, 1758155, 3516310, 3968407, 7936814, 19842035, 27778849, 39684070, 55557698, 138894245, 277788490]

約数ペア:

[(1, 277788490), (2, 138894245), (5, 55557698), (7, 39684070), (10, 27778849), (14, 19842035), (35, 7936814), (70, 3968407), (79, 3516310), (158, 1758155), (191, 1454390), (263, 1056230), (382, 727195), (395, 703262), (526, 528115), (553, 502330), (790, 351631), (955, 290878), (1106, 251165), (1315, 211246), (1337, 207770), (1841, 150890), (1910, 145439), (2630, 105623), (2674, 103885), (2765, 100466), (3682, 75445), (5530, 50233), (6685, 41554), (9205, 30178), (13370, 20777), (15089, 18410)]