307780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1399}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 705600

約数和(自身を除く): 397820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1399, 2798, 5596, 6995, 13990, 15389, 27980, 30778, 61556, 76945, 153890, 307780]

約数ペア:

[(1, 307780), (2, 153890), (4, 76945), (5, 61556), (10, 30778), (11, 27980), (20, 15389), (22, 13990), (44, 6995), (55, 5596), (110, 2798), (220, 1399)]