131478255

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{971}}^1$

素因数の和:1061

約数の個数: 64

約数和(自身を含む): 251942400

約数和(自身を除く): 120464145

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 59, 85, 135, 153, 177, 255, 295, 459, 531, 765, 885, 971, 1003, 1593, 2295, 2655, 2913, 3009, 4855, 5015, 7965, 8739, 9027, 14565, 15045, 16507, 26217, 27081, 43695, 45135, 49521, 57289, 82535, 131085, 135405, 148563, 171867, 247605, 286445, 445689, 515601, 742815, 859335, 973913, 1546803, 2228445, 2578005, 2921739, 4869565, 7734015, 8765217, 14608695, 26295651, 43826085, 131478255]

約数ペア:

[(1, 131478255), (3, 43826085), (5, 26295651), (9, 14608695), (15, 8765217), (17, 7734015), (27, 4869565), (45, 2921739), (51, 2578005), (59, 2228445), (85, 1546803), (135, 973913), (153, 859335), (177, 742815), (255, 515601), (295, 445689), (459, 286445), (531, 247605), (765, 171867), (885, 148563), (971, 135405), (1003, 131085), (1593, 82535), (2295, 57289), (2655, 49521), (2913, 45135), (3009, 43695), (4855, 27081), (5015, 26217), (7965, 16507), (8739, 15045), (9027, 14565)]