131805520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21397}}^1$

素因数の和:21428

約数の個数: 80

約数和(自身を含む): 382082688

約数和(自身を除く): 250277168

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 21397, 42794, 85588, 106985, 149779, 171176, 213970, 235367, 299558, 342352, 427940, 470734, 599116, 748895, 855880, 941468, 1176835, 1198232, 1497790, 1647569, 1711760, 1882936, 2353670, 2396464, 2995580, 3295138, 3765872, 4707340, 5991160, 6590276, 8237845, 9414680, 11982320, 13180552, 16475690, 18829360, 26361104, 32951380, 65902760, 131805520]

約数ペア:

[(1, 131805520), (2, 65902760), (4, 32951380), (5, 26361104), (7, 18829360), (8, 16475690), (10, 13180552), (11, 11982320), (14, 9414680), (16, 8237845), (20, 6590276), (22, 5991160), (28, 4707340), (35, 3765872), (40, 3295138), (44, 2995580), (55, 2396464), (56, 2353670), (70, 1882936), (77, 1711760), (80, 1647569), (88, 1497790), (110, 1198232), (112, 1176835), (140, 941468), (154, 855880), (176, 748895), (220, 599116), (280, 470734), (308, 427940), (385, 342352), (440, 299558), (560, 235367), (616, 213970), (770, 171176), (880, 149779), (1232, 106985), (1540, 85588), (3080, 42794), (6160, 21397)]