78380390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{3617}}^1$

素因数の和:3832

約数の個数: 32

約数和(自身を含む): 154734624

約数和(自身を除く): 76354234

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197, 394, 985, 1970, 2167, 3617, 4334, 7234, 10835, 18085, 21670, 36170, 39787, 79574, 198935, 397870, 712549, 1425098, 3562745, 7125490, 7838039, 15676078, 39190195, 78380390]

約数ペア:

[(1, 78380390), (2, 39190195), (5, 15676078), (10, 7838039), (11, 7125490), (22, 3562745), (55, 1425098), (110, 712549), (197, 397870), (394, 198935), (985, 79574), (1970, 39787), (2167, 36170), (3617, 21670), (4334, 18085), (7234, 10835)]