206540165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{4079}}^1$

素因数の和:4157

約数の個数: 32

約数和(自身を含む): 287884800

約数和(自身を除く): 81344635

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 533, 779, 1235, 2665, 3895, 4079, 10127, 20395, 50635, 53027, 77501, 167239, 265135, 387505, 836195, 1007513, 2174107, 3177541, 5037565, 10870535, 15887705, 41308033, 206540165]

約数ペア:

[(1, 206540165), (5, 41308033), (13, 15887705), (19, 10870535), (41, 5037565), (65, 3177541), (95, 2174107), (205, 1007513), (247, 836195), (533, 387505), (779, 265135), (1235, 167239), (2665, 77501), (3895, 53027), (4079, 50635), (10127, 20395)]