4521880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 11404800

約数和(自身を除く): 6882920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 239, 344, 430, 440, 473, 478, 860, 946, 956, 1195, 1720, 1892, 1912, 2365, 2390, 2629, 3784, 4730, 4780, 5258, 9460, 9560, 10277, 10516, 13145, 18920, 20554, 21032, 26290, 41108, 51385, 52580, 82216, 102770, 105160, 113047, 205540, 226094, 411080, 452188, 565235, 904376, 1130470, 2260940, 4521880]

約数ペア:

[(1, 4521880), (2, 2260940), (4, 1130470), (5, 904376), (8, 565235), (10, 452188), (11, 411080), (20, 226094), (22, 205540), (40, 113047), (43, 105160), (44, 102770), (55, 82216), (86, 52580), (88, 51385), (110, 41108), (172, 26290), (215, 21032), (220, 20554), (239, 18920), (344, 13145), (430, 10516), (440, 10277), (473, 9560), (478, 9460), (860, 5258), (946, 4780), (956, 4730), (1195, 3784), (1720, 2629), (1892, 2390), (1912, 2365)]