209554345

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 341107200

約数和(自身を除く): 131552855

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 149, 281, 385, 455, 715, 745, 1001, 1043, 1405, 1639, 1937, 1967, 3091, 3653, 5005, 5215, 8195, 9685, 9835, 11473, 13559, 15455, 18265, 21307, 21637, 25571, 40183, 41869, 57365, 67795, 106535, 108185, 127855, 149149, 200915, 209345, 281281, 293083, 460559, 544297, 745745, 1406405, 1465415, 2302795, 2721485, 3223913, 3810079, 5987267, 16119565, 19050395, 29936335, 41910869, 209554345]

約数ペア:

[(1, 209554345), (5, 41910869), (7, 29936335), (11, 19050395), (13, 16119565), (35, 5987267), (55, 3810079), (65, 3223913), (77, 2721485), (91, 2302795), (143, 1465415), (149, 1406405), (281, 745745), (385, 544297), (455, 460559), (715, 293083), (745, 281281), (1001, 209345), (1043, 200915), (1405, 149149), (1639, 127855), (1937, 108185), (1967, 106535), (3091, 67795), (3653, 57365), (5005, 41869), (5215, 40183), (8195, 25571), (9685, 21637), (9835, 21307), (11473, 18265), (13559, 15455)]