25653340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{383}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 57480192

約数和(自身を除く): 31826852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 383, 394, 766, 788, 985, 1532, 1915, 1970, 3349, 3830, 3940, 6511, 6698, 7660, 13022, 13396, 16745, 26044, 32555, 33490, 65110, 66980, 75451, 130220, 150902, 301804, 377255, 754510, 1282667, 1509020, 2565334, 5130668, 6413335, 12826670, 25653340]

約数ペア:

[(1, 25653340), (2, 12826670), (4, 6413335), (5, 5130668), (10, 2565334), (17, 1509020), (20, 1282667), (34, 754510), (68, 377255), (85, 301804), (170, 150902), (197, 130220), (340, 75451), (383, 66980), (394, 65110), (766, 33490), (788, 32555), (985, 26044), (1532, 16745), (1915, 13396), (1970, 13022), (3349, 7660), (3830, 6698), (3940, 6511)]