215589780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{171103}}^1$

素因数の和:171125

約数の個数: 72

約数和(自身を含む): 747382272

約数和(自身を除く): 531792492

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 171103, 342206, 513309, 684412, 855515, 1026618, 1197721, 1539927, 1711030, 2053236, 2395442, 2566545, 3079854, 3422060, 3593163, 4790884, 5133090, 5988605, 6159708, 7186326, 7699635, 10266180, 10779489, 11977210, 14372652, 15399270, 17965815, 21558978, 23954420, 30798540, 35931630, 43117956, 53897445, 71863260, 107794890, 215589780]

約数ペア:

[(1, 215589780), (2, 107794890), (3, 71863260), (4, 53897445), (5, 43117956), (6, 35931630), (7, 30798540), (9, 23954420), (10, 21558978), (12, 17965815), (14, 15399270), (15, 14372652), (18, 11977210), (20, 10779489), (21, 10266180), (28, 7699635), (30, 7186326), (35, 6159708), (36, 5988605), (42, 5133090), (45, 4790884), (60, 3593163), (63, 3422060), (70, 3079854), (84, 2566545), (90, 2395442), (105, 2053236), (126, 1711030), (140, 1539927), (180, 1197721), (210, 1026618), (252, 855515), (315, 684412), (420, 513309), (630, 342206), (1260, 171103)]