18164901020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{383}}^1\times {\mathrm{1223}}^1$

素因数の和:1899

約数の個数: 96

約数和(自身を含む): 43903254528

約数和(自身を除く): 25738353508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 383, 554, 766, 1108, 1223, 1385, 1532, 1915, 1939, 2446, 2681, 2770, 3830, 3878, 4892, 5362, 5540, 6115, 7660, 7756, 8561, 9695, 10724, 12230, 13405, 17122, 19390, 24460, 26810, 34244, 38780, 42805, 53620, 85610, 106091, 171220, 212182, 338771, 424364, 468409, 530455, 677542, 742637, 936818, 1060910, 1355084, 1485274, 1693855, 1873636, 2121820, 2342045, 2371397, 2970548, 3278863, 3387710, 3713185, 4684090, 4742794, 6557726, 6775420, 7426370, 9368180, 9485588, 11856985, 13115452, 14852740, 16394315, 23713970, 32788630, 47427940, 65577260, 129749293, 259498586, 518997172, 648746465, 908245051, 1297492930, 1816490102, 2594985860, 3632980204, 4541225255, 9082450510, 18164901020]

約数ペア:

[(1, 18164901020), (2, 9082450510), (4, 4541225255), (5, 3632980204), (7, 2594985860), (10, 1816490102), (14, 1297492930), (20, 908245051), (28, 648746465), (35, 518997172), (70, 259498586), (140, 129749293), (277, 65577260), (383, 47427940), (554, 32788630), (766, 23713970), (1108, 16394315), (1223, 14852740), (1385, 13115452), (1532, 11856985), (1915, 9485588), (1939, 9368180), (2446, 7426370), (2681, 6775420), (2770, 6557726), (3830, 4742794), (3878, 4684090), (4892, 3713185), (5362, 3387710), (5540, 3278863), (6115, 2970548), (7660, 2371397), (7756, 2342045), (8561, 2121820), (9695, 1873636), (10724, 1693855), (12230, 1485274), (13405, 1355084), (17122, 1060910), (19390, 936818), (24460, 742637), (26810, 677542), (34244, 530455), (38780, 468409), (42805, 424364), (53620, 338771), (85610, 212182), (106091, 171220)]