318820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:867

約数の個数: 24

約数和(自身を含む): 705600

約数和(自身を除く): 386780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 839, 1678, 3356, 4195, 8390, 15941, 16780, 31882, 63764, 79705, 159410, 318820]

約数ペア:

[(1, 318820), (2, 159410), (4, 79705), (5, 63764), (10, 31882), (19, 16780), (20, 15941), (38, 8390), (76, 4195), (95, 3356), (190, 1678), (380, 839)]