20800872

素因数分解:

$2^3\times 3^2\times {\mathrm{251}}^1\times {\mathrm{1151}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 56609280

約数和(自身を除く): 35808408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 251, 502, 753, 1004, 1151, 1506, 2008, 2259, 2302, 3012, 3453, 4518, 4604, 6024, 6906, 9036, 9208, 10359, 13812, 18072, 20718, 27624, 41436, 82872, 288901, 577802, 866703, 1155604, 1733406, 2311208, 2600109, 3466812, 5200218, 6933624, 10400436, 20800872]

約数ペア:

[(1, 20800872), (2, 10400436), (3, 6933624), (4, 5200218), (6, 3466812), (8, 2600109), (9, 2311208), (12, 1733406), (18, 1155604), (24, 866703), (36, 577802), (72, 288901), (251, 82872), (502, 41436), (753, 27624), (1004, 20718), (1151, 18072), (1506, 13812), (2008, 10359), (2259, 9208), (2302, 9036), (3012, 6906), (3453, 6024), (4518, 4604)]