2018665960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{13187}}^1$

素因数の和:13330

約数の個数: 64

約数和(自身を含む): 4700203200

約数和(自身を除く): 2681537240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 89, 172, 178, 215, 344, 356, 430, 445, 712, 860, 890, 1720, 1780, 3560, 3827, 7654, 13187, 15308, 19135, 26374, 30616, 38270, 52748, 65935, 76540, 105496, 131870, 153080, 263740, 527480, 567041, 1134082, 1173643, 2268164, 2347286, 2835205, 4536328, 4694572, 5670410, 5868215, 9389144, 11340820, 11736430, 22681640, 23472860, 46945720, 50466649, 100933298, 201866596, 252333245, 403733192, 504666490, 1009332980, 2018665960]

約数ペア:

[(1, 2018665960), (2, 1009332980), (4, 504666490), (5, 403733192), (8, 252333245), (10, 201866596), (20, 100933298), (40, 50466649), (43, 46945720), (86, 23472860), (89, 22681640), (172, 11736430), (178, 11340820), (215, 9389144), (344, 5868215), (356, 5670410), (430, 4694572), (445, 4536328), (712, 2835205), (860, 2347286), (890, 2268164), (1720, 1173643), (1780, 1134082), (3560, 567041), (3827, 527480), (7654, 263740), (13187, 153080), (15308, 131870), (19135, 105496), (26374, 76540), (30616, 65935), (38270, 52748)]