16230040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 38102400

約数和(自身を除く): 21872360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 89, 94, 97, 178, 188, 194, 235, 356, 376, 388, 445, 470, 485, 712, 776, 890, 940, 970, 1780, 1880, 1940, 3560, 3880, 4183, 4559, 8366, 8633, 9118, 16732, 17266, 18236, 20915, 22795, 33464, 34532, 36472, 41830, 43165, 45590, 69064, 83660, 86330, 91180, 167320, 172660, 182360, 345320, 405751, 811502, 1623004, 2028755, 3246008, 4057510, 8115020, 16230040]

約数ペア:

[(1, 16230040), (2, 8115020), (4, 4057510), (5, 3246008), (8, 2028755), (10, 1623004), (20, 811502), (40, 405751), (47, 345320), (89, 182360), (94, 172660), (97, 167320), (178, 91180), (188, 86330), (194, 83660), (235, 69064), (356, 45590), (376, 43165), (388, 41830), (445, 36472), (470, 34532), (485, 33464), (712, 22795), (776, 20915), (890, 18236), (940, 17266), (970, 16732), (1780, 9118), (1880, 8633), (1940, 8366), (3560, 4559), (3880, 4183)]