209366985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{547}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 378777600

約数和(自身を除く): 169410615

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 79, 85, 95, 237, 255, 285, 323, 395, 547, 969, 1185, 1343, 1501, 1615, 1641, 2735, 4029, 4503, 4845, 6715, 7505, 8205, 9299, 10393, 20145, 22515, 25517, 27897, 31179, 43213, 46495, 51965, 76551, 127585, 129639, 139485, 155895, 176681, 216065, 382755, 530043, 648195, 734621, 821047, 883405, 2203863, 2463141, 2650215, 3673105, 4105235, 11019315, 12315705, 13957799, 41873397, 69788995, 209366985]

約数ペア:

[(1, 209366985), (3, 69788995), (5, 41873397), (15, 13957799), (17, 12315705), (19, 11019315), (51, 4105235), (57, 3673105), (79, 2650215), (85, 2463141), (95, 2203863), (237, 883405), (255, 821047), (285, 734621), (323, 648195), (395, 530043), (547, 382755), (969, 216065), (1185, 176681), (1343, 155895), (1501, 139485), (1615, 129639), (1641, 127585), (2735, 76551), (4029, 51965), (4503, 46495), (4845, 43213), (6715, 31179), (7505, 27897), (8205, 25517), (9299, 22515), (10393, 20145)]