256805280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1283}}^1$

素因数の和:1443

約数の個数: 144

約数和(自身を含む): 883340640

約数和(自身を除く): 626535360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 139, 144, 160, 180, 240, 278, 288, 360, 417, 480, 556, 695, 720, 834, 1112, 1251, 1283, 1390, 1440, 1668, 2085, 2224, 2502, 2566, 2780, 3336, 3849, 4170, 4448, 5004, 5132, 5560, 6255, 6415, 6672, 7698, 8340, 10008, 10264, 11120, 11547, 12510, 12830, 13344, 15396, 16680, 19245, 20016, 20528, 22240, 23094, 25020, 25660, 30792, 33360, 38490, 40032, 41056, 46188, 50040, 51320, 57735, 61584, 66720, 76980, 92376, 100080, 102640, 115470, 123168, 153960, 178337, 184752, 200160, 205280, 230940, 307920, 356674, 369504, 461880, 535011, 615840, 713348, 891685, 923760, 1070022, 1426696, 1605033, 1783370, 1847520, 2140044, 2675055, 2853392, 3210066, 3566740, 4280088, 5350110, 5706784, 6420132, 7133480, 8025165, 8560176, 10700220, 12840264, 14266960, 16050330, 17120352, 21400440, 25680528, 28533920, 32100660, 42800880, 51361056, 64201320, 85601760, 128402640, 256805280]

約数ペア:

[(1, 256805280), (2, 128402640), (3, 85601760), (4, 64201320), (5, 51361056), (6, 42800880), (8, 32100660), (9, 28533920), (10, 25680528), (12, 21400440), (15, 17120352), (16, 16050330), (18, 14266960), (20, 12840264), (24, 10700220), (30, 8560176), (32, 8025165), (36, 7133480), (40, 6420132), (45, 5706784), (48, 5350110), (60, 4280088), (72, 3566740), (80, 3210066), (90, 2853392), (96, 2675055), (120, 2140044), (139, 1847520), (144, 1783370), (160, 1605033), (180, 1426696), (240, 1070022), (278, 923760), (288, 891685), (360, 713348), (417, 615840), (480, 535011), (556, 461880), (695, 369504), (720, 356674), (834, 307920), (1112, 230940), (1251, 205280), (1283, 200160), (1390, 184752), (1440, 178337), (1668, 153960), (2085, 123168), (2224, 115470), (2502, 102640), (2566, 100080), (2780, 92376), (3336, 76980), (3849, 66720), (4170, 61584), (4448, 57735), (5004, 51320), (5132, 50040), (5560, 46188), (6255, 41056), (6415, 40032), (6672, 38490), (7698, 33360), (8340, 30792), (10008, 25660), (10264, 25020), (11120, 23094), (11547, 22240), (12510, 20528), (12830, 20016), (13344, 19245), (15396, 16680)]