51306680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{383}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 123171840

約数和(自身を除く): 71865160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 197, 340, 383, 394, 680, 766, 788, 985, 1532, 1576, 1915, 1970, 3064, 3349, 3830, 3940, 6511, 6698, 7660, 7880, 13022, 13396, 15320, 16745, 26044, 26792, 32555, 33490, 52088, 65110, 66980, 75451, 130220, 133960, 150902, 260440, 301804, 377255, 603608, 754510, 1282667, 1509020, 2565334, 3018040, 5130668, 6413335, 10261336, 12826670, 25653340, 51306680]

約数ペア:

[(1, 51306680), (2, 25653340), (4, 12826670), (5, 10261336), (8, 6413335), (10, 5130668), (17, 3018040), (20, 2565334), (34, 1509020), (40, 1282667), (68, 754510), (85, 603608), (136, 377255), (170, 301804), (197, 260440), (340, 150902), (383, 133960), (394, 130220), (680, 75451), (766, 66980), (788, 65110), (985, 52088), (1532, 33490), (1576, 32555), (1915, 26792), (1970, 26044), (3064, 16745), (3349, 15320), (3830, 13396), (3940, 13022), (6511, 7880), (6698, 7660)]