15212780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{69149}}^1$

素因数の和:69169

約数の個数: 24

約数和(自身を含む): 34851600

約数和(自身を除く): 19638820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 69149, 138298, 276596, 345745, 691490, 760639, 1382980, 1521278, 3042556, 3803195, 7606390, 15212780]

約数ペア:

[(1, 15212780), (2, 7606390), (4, 3803195), (5, 3042556), (10, 1521278), (11, 1382980), (20, 760639), (22, 691490), (44, 345745), (55, 276596), (110, 138298), (220, 69149)]