637640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 1512000

約数和(自身を除く): 874360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 839, 1678, 3356, 4195, 6712, 8390, 15941, 16780, 31882, 33560, 63764, 79705, 127528, 159410, 318820, 637640]

約数ペア:

[(1, 637640), (2, 318820), (4, 159410), (5, 127528), (8, 79705), (10, 63764), (19, 33560), (20, 31882), (38, 16780), (40, 15941), (76, 8390), (95, 6712), (152, 4195), (190, 3356), (380, 1678), (760, 839)]