76780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 176400

約数和(自身を除く): 99620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 349, 698, 1396, 1745, 3490, 3839, 6980, 7678, 15356, 19195, 38390, 76780]

約数ペア:

[(1, 76780), (2, 38390), (4, 19195), (5, 15356), (10, 7678), (11, 6980), (20, 3839), (22, 3490), (44, 1745), (55, 1396), (110, 698), (220, 349)]