18920440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6143}}^1$

素因数の和:6172

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 34163720

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, 6143, 12286, 24572, 30715, 43001, 49144, 61430, 67573, 86002, 122860, 135146, 172004, 215005, 245720, 270292, 337865, 344008, 430010, 473011, 540584, 675730, 860020, 946022, 1351460, 1720040, 1892044, 2365055, 2702920, 3784088, 4730110, 9460220, 18920440]

約数ペア:

[(1, 18920440), (2, 9460220), (4, 4730110), (5, 3784088), (7, 2702920), (8, 2365055), (10, 1892044), (11, 1720040), (14, 1351460), (20, 946022), (22, 860020), (28, 675730), (35, 540584), (40, 473011), (44, 430010), (55, 344008), (56, 337865), (70, 270292), (77, 245720), (88, 215005), (110, 172004), (140, 135146), (154, 122860), (220, 86002), (280, 67573), (308, 61430), (385, 49144), (440, 43001), (616, 30715), (770, 24572), (1540, 12286), (3080, 6143)]