19405540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12601}}^1$

素因数の和:12628

約数の個数: 48

約数和(自身を含む): 50811264

約数和(自身を除く): 31405724

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12601, 25202, 50404, 63005, 88207, 126010, 138611, 176414, 252020, 277222, 352828, 441035, 554444, 693055, 882070, 970277, 1386110, 1764140, 1940554, 2772220, 3881108, 4851385, 9702770, 19405540]

約数ペア:

[(1, 19405540), (2, 9702770), (4, 4851385), (5, 3881108), (7, 2772220), (10, 1940554), (11, 1764140), (14, 1386110), (20, 970277), (22, 882070), (28, 693055), (35, 554444), (44, 441035), (55, 352828), (70, 277222), (77, 252020), (110, 176414), (140, 138611), (154, 126010), (220, 88207), (308, 63005), (385, 50404), (770, 25202), (1540, 12601)]