859773820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:427

約数の個数: 96

約数和(自身を含む): 1916006400

約数和(自身を除く): 1056232580

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 89, 94, 172, 178, 188, 215, 235, 239, 356, 430, 445, 470, 478, 860, 890, 940, 956, 1195, 1780, 2021, 2390, 3827, 4042, 4183, 4780, 7654, 8084, 8366, 10105, 10277, 11233, 15308, 16732, 19135, 20210, 20554, 20915, 21271, 22466, 38270, 40420, 41108, 41830, 42542, 44932, 51385, 56165, 76540, 83660, 85084, 102770, 106355, 112330, 179869, 205540, 212710, 224660, 359738, 425420, 483019, 719476, 899345, 914653, 966038, 999737, 1798690, 1829306, 1932076, 1999474, 2415095, 3597380, 3658612, 3998948, 4573265, 4830190, 4998685, 9146530, 9660380, 9997370, 18293060, 19994740, 42988691, 85977382, 171954764, 214943455, 429886910, 859773820]

約数ペア:

[(1, 859773820), (2, 429886910), (4, 214943455), (5, 171954764), (10, 85977382), (20, 42988691), (43, 19994740), (47, 18293060), (86, 9997370), (89, 9660380), (94, 9146530), (172, 4998685), (178, 4830190), (188, 4573265), (215, 3998948), (235, 3658612), (239, 3597380), (356, 2415095), (430, 1999474), (445, 1932076), (470, 1829306), (478, 1798690), (860, 999737), (890, 966038), (940, 914653), (956, 899345), (1195, 719476), (1780, 483019), (2021, 425420), (2390, 359738), (3827, 224660), (4042, 212710), (4183, 205540), (4780, 179869), (7654, 112330), (8084, 106355), (8366, 102770), (10105, 85084), (10277, 83660), (11233, 76540), (15308, 56165), (16732, 51385), (19135, 44932), (20210, 42542), (20554, 41830), (20915, 41108), (21271, 40420), (22466, 38270)]