19776540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47087}}^1$

素因数の和:47106

約数の個数: 48

約数和(自身を含む): 63286272

約数和(自身を除く): 43509732

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, 47087, 94174, 141261, 188348, 235435, 282522, 329609, 470870, 565044, 659218, 706305, 941740, 988827, 1318436, 1412610, 1648045, 1977654, 2825220, 3296090, 3955308, 4944135, 6592180, 9888270, 19776540]

約数ペア:

[(1, 19776540), (2, 9888270), (3, 6592180), (4, 4944135), (5, 3955308), (6, 3296090), (7, 2825220), (10, 1977654), (12, 1648045), (14, 1412610), (15, 1318436), (20, 988827), (21, 941740), (28, 706305), (30, 659218), (35, 565044), (42, 470870), (60, 329609), (70, 282522), (84, 235435), (105, 188348), (140, 141261), (210, 94174), (420, 47087)]