19690220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89501}}^1$

素因数の和:89521

約数の個数: 24

約数和(自身を含む): 45109008

約数和(自身を除く): 25418788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89501, 179002, 358004, 447505, 895010, 984511, 1790020, 1969022, 3938044, 4922555, 9845110, 19690220]

約数ペア:

[(1, 19690220), (2, 9845110), (4, 4922555), (5, 3938044), (10, 1969022), (11, 1790020), (20, 984511), (22, 895010), (44, 447505), (55, 358004), (110, 179002), (220, 89501)]