204960105

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2027}}^1$

素因数の和:2155

約数の個数: 64

約数和(自身を含む): 420526080

約数和(自身を除く): 215565975

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 107, 135, 189, 315, 321, 535, 749, 945, 963, 1605, 2027, 2247, 2889, 3745, 4815, 6081, 6741, 10135, 11235, 14189, 14445, 18243, 20223, 30405, 33705, 42567, 54729, 70945, 91215, 101115, 127701, 212835, 216889, 273645, 383103, 638505, 650667, 1084445, 1518223, 1915515, 1952001, 3253335, 4554669, 5856003, 7591115, 9760005, 13664007, 22773345, 29280015, 40992021, 68320035, 204960105]

約数ペア:

[(1, 204960105), (3, 68320035), (5, 40992021), (7, 29280015), (9, 22773345), (15, 13664007), (21, 9760005), (27, 7591115), (35, 5856003), (45, 4554669), (63, 3253335), (105, 1952001), (107, 1915515), (135, 1518223), (189, 1084445), (315, 650667), (321, 638505), (535, 383103), (749, 273645), (945, 216889), (963, 212835), (1605, 127701), (2027, 101115), (2247, 91215), (2889, 70945), (3745, 54729), (4815, 42567), (6081, 33705), (6741, 30405), (10135, 20223), (11235, 18243), (14189, 14445)]