161716280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2341}}^1$

素因数の和:2520

約数の個数: 64

約数和(自身を含む): 399638880

約数和(自身を除く): 237922600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 157, 220, 314, 440, 628, 785, 1256, 1570, 1727, 2341, 3140, 3454, 4682, 6280, 6908, 8635, 9364, 11705, 13816, 17270, 18728, 23410, 25751, 34540, 46820, 51502, 69080, 93640, 103004, 128755, 206008, 257510, 367537, 515020, 735074, 1030040, 1470148, 1837685, 2940296, 3675370, 4042907, 7350740, 8085814, 14701480, 16171628, 20214535, 32343256, 40429070, 80858140, 161716280]

約数ペア:

[(1, 161716280), (2, 80858140), (4, 40429070), (5, 32343256), (8, 20214535), (10, 16171628), (11, 14701480), (20, 8085814), (22, 7350740), (40, 4042907), (44, 3675370), (55, 2940296), (88, 1837685), (110, 1470148), (157, 1030040), (220, 735074), (314, 515020), (440, 367537), (628, 257510), (785, 206008), (1256, 128755), (1570, 103004), (1727, 93640), (2341, 69080), (3140, 51502), (3454, 46820), (4682, 34540), (6280, 25751), (6908, 23410), (8635, 18728), (9364, 17270), (11705, 13816)]