720268080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{428731}}^1$

素因数の和:428754

約数の個数: 80

約数和(自身を含む): 2551812864

約数和(自身を除く): 1831544784

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 428731, 857462, 1286193, 1714924, 2143655, 2572386, 3001117, 3429848, 4287310, 5144772, 6002234, 6430965, 6859696, 8574620, 9003351, 10289544, 12004468, 12861930, 15005585, 17149240, 18006702, 20579088, 24008936, 25723860, 30011170, 34298480, 36013404, 45016755, 48017872, 51447720, 60022340, 72026808, 90033510, 102895440, 120044680, 144053616, 180067020, 240089360, 360134040, 720268080]

約数ペア:

[(1, 720268080), (2, 360134040), (3, 240089360), (4, 180067020), (5, 144053616), (6, 120044680), (7, 102895440), (8, 90033510), (10, 72026808), (12, 60022340), (14, 51447720), (15, 48017872), (16, 45016755), (20, 36013404), (21, 34298480), (24, 30011170), (28, 25723860), (30, 24008936), (35, 20579088), (40, 18006702), (42, 17149240), (48, 15005585), (56, 12861930), (60, 12004468), (70, 10289544), (80, 9003351), (84, 8574620), (105, 6859696), (112, 6430965), (120, 6002234), (140, 5144772), (168, 4287310), (210, 3429848), (240, 3001117), (280, 2572386), (336, 2143655), (420, 1714924), (560, 1286193), (840, 857462), (1680, 428731)]