15678740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10181}}^1$

素因数の和:10208

約数の個数: 48

約数和(自身を含む): 41053824

約数和(自身を除く): 25375084

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, 10181, 20362, 40724, 50905, 71267, 101810, 111991, 142534, 203620, 223982, 285068, 356335, 447964, 559955, 712670, 783937, 1119910, 1425340, 1567874, 2239820, 3135748, 3919685, 7839370, 15678740]

約数ペア:

[(1, 15678740), (2, 7839370), (4, 3919685), (5, 3135748), (7, 2239820), (10, 1567874), (11, 1425340), (14, 1119910), (20, 783937), (22, 712670), (28, 559955), (35, 447964), (44, 356335), (55, 285068), (70, 223982), (77, 203620), (110, 142534), (140, 111991), (154, 101810), (220, 71267), (308, 50905), (385, 40724), (770, 20362), (1540, 10181)]