18121015780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{931193}}^1$

素因数の和:931348

約数の個数: 48

約数和(自身を含む): 43803365760

約数和(自身を除く): 25682349980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 19460, 931193, 1862386, 3724772, 4655965, 6518351, 9311930, 13036702, 18623860, 26073404, 32591755, 65183510, 129435827, 130367020, 258871654, 517743308, 647179135, 906050789, 1294358270, 1812101578, 2588716540, 3624203156, 4530253945, 9060507890, 18121015780]

約数ペア:

[(1, 18121015780), (2, 9060507890), (4, 4530253945), (5, 3624203156), (7, 2588716540), (10, 1812101578), (14, 1294358270), (20, 906050789), (28, 647179135), (35, 517743308), (70, 258871654), (139, 130367020), (140, 129435827), (278, 65183510), (556, 32591755), (695, 26073404), (973, 18623860), (1390, 13036702), (1946, 9311930), (2780, 6518351), (3892, 4655965), (4865, 3724772), (9730, 1862386), (19460, 931193)]