20300319

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 33895680

約数和(自身を除く): 13595361

約数列:

[1, 3, 9, 13, 29, 31, 39, 87, 93, 117, 193, 261, 279, 377, 403, 579, 899, 1131, 1209, 1737, 2509, 2697, 3393, 3627, 5597, 5983, 7527, 8091, 11687, 16791, 17949, 22581, 35061, 50373, 53847, 72761, 77779, 105183, 173507, 218283, 233337, 520521, 654849, 700011, 1561563, 2255591, 6766773, 20300319]

約数ペア:

[(1, 20300319), (3, 6766773), (9, 2255591), (13, 1561563), (29, 700011), (31, 654849), (39, 520521), (87, 233337), (93, 218283), (117, 173507), (193, 105183), (261, 77779), (279, 72761), (377, 53847), (403, 50373), (579, 35061), (899, 22581), (1131, 17949), (1209, 16791), (1737, 11687), (2509, 8091), (2697, 7527), (3393, 5983), (3627, 5597)]