207900840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{247501}}^1$

素因数の和:247522

約数の個数: 64

約数和(自身を含む): 712805760

約数和(自身を除く): 504904920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 247501, 495002, 742503, 990004, 1237505, 1485006, 1732507, 1980008, 2475010, 2970012, 3465014, 3712515, 4950020, 5197521, 5940024, 6930028, 7425030, 8662535, 9900040, 10395042, 13860056, 14850060, 17325070, 20790084, 25987605, 29700120, 34650140, 41580168, 51975210, 69300280, 103950420, 207900840]

約数ペア:

[(1, 207900840), (2, 103950420), (3, 69300280), (4, 51975210), (5, 41580168), (6, 34650140), (7, 29700120), (8, 25987605), (10, 20790084), (12, 17325070), (14, 14850060), (15, 13860056), (20, 10395042), (21, 9900040), (24, 8662535), (28, 7425030), (30, 6930028), (35, 5940024), (40, 5197521), (42, 4950020), (56, 3712515), (60, 3465014), (70, 2970012), (84, 2475010), (105, 1980008), (120, 1732507), (140, 1485006), (168, 1237505), (210, 990004), (280, 742503), (420, 495002), (840, 247501)]