28249284

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{449}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 77565600

約数和(自身を除く): 49316316

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 107, 147, 196, 214, 294, 321, 428, 449, 588, 642, 749, 898, 1284, 1347, 1498, 1796, 2247, 2694, 2996, 3143, 4494, 5243, 5388, 6286, 8988, 9429, 10486, 12572, 15729, 18858, 20972, 22001, 31458, 37716, 44002, 48043, 62916, 66003, 88004, 96086, 132006, 144129, 192172, 264012, 288258, 336301, 576516, 672602, 1008903, 1345204, 2017806, 2354107, 4035612, 4708214, 7062321, 9416428, 14124642, 28249284]

約数ペア:

[(1, 28249284), (2, 14124642), (3, 9416428), (4, 7062321), (6, 4708214), (7, 4035612), (12, 2354107), (14, 2017806), (21, 1345204), (28, 1008903), (42, 672602), (49, 576516), (84, 336301), (98, 288258), (107, 264012), (147, 192172), (196, 144129), (214, 132006), (294, 96086), (321, 88004), (428, 66003), (449, 62916), (588, 48043), (642, 44002), (749, 37716), (898, 31458), (1284, 22001), (1347, 20972), (1498, 18858), (1796, 15729), (2247, 12572), (2694, 10486), (2996, 9429), (3143, 8988), (4494, 6286), (5243, 5388)]