20772004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 41771520

約数和(自身を除く): 20999516

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 73, 116, 146, 223, 292, 319, 446, 638, 803, 892, 1276, 1606, 2117, 2453, 3212, 4234, 4906, 6467, 8468, 9812, 12934, 16279, 23287, 25868, 32558, 46574, 65116, 71137, 93148, 142274, 179069, 284548, 358138, 472091, 716276, 944182, 1888364, 5193001, 10386002, 20772004]

約数ペア:

[(1, 20772004), (2, 10386002), (4, 5193001), (11, 1888364), (22, 944182), (29, 716276), (44, 472091), (58, 358138), (73, 284548), (116, 179069), (146, 142274), (223, 93148), (292, 71137), (319, 65116), (446, 46574), (638, 32558), (803, 25868), (892, 23287), (1276, 16279), (1606, 12934), (2117, 9812), (2453, 8468), (3212, 6467), (4234, 4906)]