20802488

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 48107520

約数和(自身を除く): 27305032

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 31, 46, 56, 62, 92, 124, 161, 184, 217, 248, 322, 434, 521, 644, 713, 868, 1042, 1288, 1426, 1736, 2084, 2852, 3647, 4168, 4991, 5704, 7294, 9982, 11983, 14588, 16151, 19964, 23966, 29176, 32302, 39928, 47932, 64604, 83881, 95864, 113057, 129208, 167762, 226114, 335524, 371473, 452228, 671048, 742946, 904456, 1485892, 2600311, 2971784, 5200622, 10401244, 20802488]

約数ペア:

[(1, 20802488), (2, 10401244), (4, 5200622), (7, 2971784), (8, 2600311), (14, 1485892), (23, 904456), (28, 742946), (31, 671048), (46, 452228), (56, 371473), (62, 335524), (92, 226114), (124, 167762), (161, 129208), (184, 113057), (217, 95864), (248, 83881), (322, 64604), (434, 47932), (521, 39928), (644, 32302), (713, 29176), (868, 23966), (1042, 19964), (1288, 16151), (1426, 14588), (1736, 11983), (2084, 9982), (2852, 7294), (3647, 5704), (4168, 4991)]