12257245

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 20643840

約数和(自身を除く): 8386595

約数列:

[1, 5, 7, 11, 13, 31, 35, 55, 65, 77, 79, 91, 143, 155, 217, 341, 385, 395, 403, 455, 553, 715, 869, 1001, 1027, 1085, 1705, 2015, 2387, 2449, 2765, 2821, 4345, 4433, 5005, 5135, 6083, 7189, 11297, 11935, 12245, 14105, 17143, 22165, 26939, 30415, 31031, 31837, 35945, 56485, 79079, 85715, 134695, 155155, 159185, 188573, 222859, 350207, 395395, 942865, 1114295, 1751035, 2451449, 12257245]

約数ペア:

[(1, 12257245), (5, 2451449), (7, 1751035), (11, 1114295), (13, 942865), (31, 395395), (35, 350207), (55, 222859), (65, 188573), (77, 159185), (79, 155155), (91, 134695), (143, 85715), (155, 79079), (217, 56485), (341, 35945), (385, 31837), (395, 31031), (403, 30415), (455, 26939), (553, 22165), (715, 17143), (869, 14105), (1001, 12245), (1027, 11935), (1085, 11297), (1705, 7189), (2015, 6083), (2387, 5135), (2449, 5005), (2765, 4433), (2821, 4345)]