17997880

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1867}}^1$

素因数の和:2119

約数の個数: 32

約数和(自身を含む): 40685040

約数和(自身を除く): 22687160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1867, 1928, 2410, 3734, 4820, 7468, 9335, 9640, 14936, 18670, 37340, 74680, 449947, 899894, 1799788, 2249735, 3599576, 4499470, 8998940, 17997880]

約数ペア:

[(1, 17997880), (2, 8998940), (4, 4499470), (5, 3599576), (8, 2249735), (10, 1799788), (20, 899894), (40, 449947), (241, 74680), (482, 37340), (964, 18670), (1205, 14936), (1867, 9640), (1928, 9335), (2410, 7468), (3734, 4820)]