20406546

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 47779200

約数和(自身を除く): 27372654

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 83, 87, 157, 166, 174, 249, 261, 314, 471, 498, 522, 747, 783, 942, 1413, 1494, 1566, 2241, 2407, 2826, 4239, 4482, 4553, 4814, 7221, 8478, 9106, 13031, 13659, 14442, 21663, 26062, 27318, 39093, 40977, 43326, 64989, 78186, 81954, 117279, 122931, 129978, 234558, 245862, 351837, 377899, 703674, 755798, 1133697, 2267394, 3401091, 6802182, 10203273, 20406546]

約数ペア:

[(1, 20406546), (2, 10203273), (3, 6802182), (6, 3401091), (9, 2267394), (18, 1133697), (27, 755798), (29, 703674), (54, 377899), (58, 351837), (83, 245862), (87, 234558), (157, 129978), (166, 122931), (174, 117279), (249, 81954), (261, 78186), (314, 64989), (471, 43326), (498, 40977), (522, 39093), (747, 27318), (783, 26062), (942, 21663), (1413, 14442), (1494, 13659), (1566, 13031), (2241, 9106), (2407, 8478), (2826, 7221), (4239, 4814), (4482, 4553)]