12783820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{719}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 30965760

約数和(自身を除く): 18181940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 719, 889, 1270, 1438, 1778, 2540, 2876, 3556, 3595, 4445, 5033, 7190, 8890, 10066, 14380, 17780, 20132, 25165, 50330, 91313, 100660, 182626, 365252, 456565, 639191, 913130, 1278382, 1826260, 2556764, 3195955, 6391910, 12783820]

約数ペア:

[(1, 12783820), (2, 6391910), (4, 3195955), (5, 2556764), (7, 1826260), (10, 1278382), (14, 913130), (20, 639191), (28, 456565), (35, 365252), (70, 182626), (127, 100660), (140, 91313), (254, 50330), (508, 25165), (635, 20132), (719, 17780), (889, 14380), (1270, 10066), (1438, 8890), (1778, 7190), (2540, 5033), (2876, 4445), (3556, 3595)]