668308620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1591211}}^1$

素因数の和:1591230

約数の個数: 48

約数和(自身を含む): 2138588928

約数和(自身を除く): 1470280308

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1591211, 3182422, 4773633, 6364844, 7956055, 9547266, 11138477, 15912110, 19094532, 22276954, 23868165, 31824220, 33415431, 44553908, 47736330, 55692385, 66830862, 95472660, 111384770, 133661724, 167077155, 222769540, 334154310, 668308620]

約数ペア:

[(1, 668308620), (2, 334154310), (3, 222769540), (4, 167077155), (5, 133661724), (6, 111384770), (7, 95472660), (10, 66830862), (12, 55692385), (14, 47736330), (15, 44553908), (20, 33415431), (21, 31824220), (28, 23868165), (30, 22276954), (35, 19094532), (42, 15912110), (60, 11138477), (70, 9547266), (84, 7956055), (105, 6364844), (140, 4773633), (210, 3182422), (420, 1591211)]