28157808

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{463}}^1$

素因数の和:662

約数の個数: 80

約数和(自身を含む): 83772416

約数和(自身を除く): 55614608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 181, 336, 362, 463, 543, 724, 926, 1086, 1267, 1389, 1448, 1852, 2172, 2534, 2778, 2896, 3241, 3704, 3801, 4344, 5068, 5556, 6482, 7408, 7602, 8688, 9723, 10136, 11112, 12964, 15204, 19446, 20272, 22224, 25928, 30408, 38892, 51856, 60816, 77784, 83803, 155568, 167606, 251409, 335212, 502818, 586621, 670424, 1005636, 1173242, 1340848, 1759863, 2011272, 2346484, 3519726, 4022544, 4692968, 7039452, 9385936, 14078904, 28157808]

約数ペア:

[(1, 28157808), (2, 14078904), (3, 9385936), (4, 7039452), (6, 4692968), (7, 4022544), (8, 3519726), (12, 2346484), (14, 2011272), (16, 1759863), (21, 1340848), (24, 1173242), (28, 1005636), (42, 670424), (48, 586621), (56, 502818), (84, 335212), (112, 251409), (168, 167606), (181, 155568), (336, 83803), (362, 77784), (463, 60816), (543, 51856), (724, 38892), (926, 30408), (1086, 25928), (1267, 22224), (1389, 20272), (1448, 19446), (1852, 15204), (2172, 12964), (2534, 11112), (2778, 10136), (2896, 9723), (3241, 8688), (3704, 7602), (3801, 7408), (4344, 6482), (5068, 5556)]