689320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{907}}^1$

素因数の和:937

約数の個数: 32

約数和(自身を含む): 1634400

約数和(自身を除く): 945080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 907, 1814, 3628, 4535, 7256, 9070, 17233, 18140, 34466, 36280, 68932, 86165, 137864, 172330, 344660, 689320]

約数ペア:

[(1, 689320), (2, 344660), (4, 172330), (5, 137864), (8, 86165), (10, 68932), (19, 36280), (20, 34466), (38, 18140), (40, 17233), (76, 9070), (95, 7256), (152, 4535), (190, 3628), (380, 1814), (760, 907)]