205989355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 312076800

約数和(自身を除く): 106087445

約数列:

[1, 5, 11, 13, 19, 55, 59, 65, 95, 143, 209, 247, 257, 295, 649, 715, 767, 1045, 1121, 1235, 1285, 2717, 2827, 3245, 3341, 3835, 4883, 5605, 8437, 12331, 13585, 14135, 14573, 15163, 16705, 24415, 36751, 42185, 53713, 61655, 63479, 72865, 75815, 160303, 166793, 183755, 197119, 268565, 288097, 317395, 698269, 801515, 833965, 985595, 1440485, 2168309, 3169067, 3491345, 3745261, 10841545, 15845335, 18726305, 41197871, 205989355]

約数ペア:

[(1, 205989355), (5, 41197871), (11, 18726305), (13, 15845335), (19, 10841545), (55, 3745261), (59, 3491345), (65, 3169067), (95, 2168309), (143, 1440485), (209, 985595), (247, 833965), (257, 801515), (295, 698269), (649, 317395), (715, 288097), (767, 268565), (1045, 197119), (1121, 183755), (1235, 166793), (1285, 160303), (2717, 75815), (2827, 72865), (3245, 63479), (3341, 61655), (3835, 53713), (4883, 42185), (5605, 36751), (8437, 24415), (12331, 16705), (13585, 15163), (14135, 14573)]