20177080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6551}}^1$

素因数の和:6580

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 36432200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6551, 13102, 26204, 32755, 45857, 52408, 65510, 72061, 91714, 131020, 144122, 183428, 229285, 262040, 288244, 360305, 366856, 458570, 504427, 576488, 720610, 917140, 1008854, 1441220, 1834280, 2017708, 2522135, 2882440, 4035416, 5044270, 10088540, 20177080]

約数ペア:

[(1, 20177080), (2, 10088540), (4, 5044270), (5, 4035416), (7, 2882440), (8, 2522135), (10, 2017708), (11, 1834280), (14, 1441220), (20, 1008854), (22, 917140), (28, 720610), (35, 576488), (40, 504427), (44, 458570), (55, 366856), (56, 360305), (70, 288244), (77, 262040), (88, 229285), (110, 183428), (140, 144122), (154, 131020), (220, 91714), (280, 72061), (308, 65510), (385, 52408), (440, 45857), (616, 32755), (770, 26204), (1540, 13102), (3080, 6551)]