7840540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 17740800

約数和(自身を除く): 9900260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 439, 470, 878, 893, 940, 1756, 1786, 2195, 3572, 4390, 4465, 8341, 8780, 8930, 16682, 17860, 20633, 33364, 41266, 41705, 82532, 83410, 103165, 166820, 206330, 392027, 412660, 784054, 1568108, 1960135, 3920270, 7840540]

約数ペア:

[(1, 7840540), (2, 3920270), (4, 1960135), (5, 1568108), (10, 784054), (19, 412660), (20, 392027), (38, 206330), (47, 166820), (76, 103165), (94, 83410), (95, 82532), (188, 41705), (190, 41266), (235, 33364), (380, 20633), (439, 17860), (470, 16682), (878, 8930), (893, 8780), (940, 8341), (1756, 4465), (1786, 4390), (2195, 3572)]