257770456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61141}}^1$

素因数の和:61195

約数の個数: 32

約数和(自身を含む): 528266880

約数和(自身を除く): 270496424

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 61141, 122282, 244564, 489128, 1039397, 1895371, 2078794, 3790742, 4157588, 7581484, 8315176, 15162968, 32221307, 64442614, 128885228, 257770456]

約数ペア:

[(1, 257770456), (2, 128885228), (4, 64442614), (8, 32221307), (17, 15162968), (31, 8315176), (34, 7581484), (62, 4157588), (68, 3790742), (124, 2078794), (136, 1895371), (248, 1039397), (527, 489128), (1054, 244564), (2108, 122282), (4216, 61141)]