28104356

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 58125312

約数和(自身を除く): 30020956

約数列:

[1, 2, 4, 7, 14, 28, 67, 71, 134, 142, 211, 268, 284, 422, 469, 497, 844, 938, 994, 1477, 1876, 1988, 2954, 4757, 5908, 9514, 14137, 14981, 19028, 28274, 29962, 33299, 56548, 59924, 66598, 98959, 104867, 133196, 197918, 209734, 395836, 419468, 1003727, 2007454, 4014908, 7026089, 14052178, 28104356]

約数ペア:

[(1, 28104356), (2, 14052178), (4, 7026089), (7, 4014908), (14, 2007454), (28, 1003727), (67, 419468), (71, 395836), (134, 209734), (142, 197918), (211, 133196), (268, 104867), (284, 98959), (422, 66598), (469, 59924), (497, 56548), (844, 33299), (938, 29962), (994, 28274), (1477, 19028), (1876, 14981), (1988, 14137), (2954, 9514), (4757, 5908)]