12743780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{401}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 30796416

約数和(自身を除く): 18052636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 401, 454, 802, 908, 1135, 1589, 1604, 2005, 2270, 2807, 3178, 4010, 4540, 5614, 6356, 7945, 8020, 11228, 14035, 15890, 28070, 31780, 56140, 91027, 182054, 364108, 455135, 637189, 910270, 1274378, 1820540, 2548756, 3185945, 6371890, 12743780]

約数ペア:

[(1, 12743780), (2, 6371890), (4, 3185945), (5, 2548756), (7, 1820540), (10, 1274378), (14, 910270), (20, 637189), (28, 455135), (35, 364108), (70, 182054), (140, 91027), (227, 56140), (401, 31780), (454, 28070), (802, 15890), (908, 14035), (1135, 11228), (1589, 8020), (1604, 7945), (2005, 6356), (2270, 5614), (2807, 4540), (3178, 4010)]