20604584

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 54190080

約数和(自身を除く): 33585496

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 31, 44, 52, 56, 62, 77, 83, 88, 91, 104, 124, 143, 154, 166, 182, 217, 248, 286, 308, 332, 341, 364, 403, 434, 572, 581, 616, 664, 682, 728, 806, 868, 913, 1001, 1079, 1144, 1162, 1364, 1612, 1736, 1826, 2002, 2158, 2324, 2387, 2573, 2728, 2821, 3224, 3652, 4004, 4316, 4433, 4648, 4774, 5146, 5642, 6391, 7304, 7553, 8008, 8632, 8866, 9548, 10292, 11284, 11869, 12782, 15106, 17732, 18011, 19096, 20584, 22568, 23738, 25564, 28303, 30212, 31031, 33449, 35464, 36022, 47476, 51128, 56606, 60424, 62062, 66898, 72044, 83083, 94952, 113212, 124124, 133796, 144088, 166166, 198121, 226424, 234143, 248248, 267592, 332332, 367939, 396242, 468286, 664664, 735878, 792484, 936572, 1471756, 1584968, 1873144, 2575573, 2943512, 5151146, 10302292, 20604584]

約数ペア:

[(1, 20604584), (2, 10302292), (4, 5151146), (7, 2943512), (8, 2575573), (11, 1873144), (13, 1584968), (14, 1471756), (22, 936572), (26, 792484), (28, 735878), (31, 664664), (44, 468286), (52, 396242), (56, 367939), (62, 332332), (77, 267592), (83, 248248), (88, 234143), (91, 226424), (104, 198121), (124, 166166), (143, 144088), (154, 133796), (166, 124124), (182, 113212), (217, 94952), (248, 83083), (286, 72044), (308, 66898), (332, 62062), (341, 60424), (364, 56606), (403, 51128), (434, 47476), (572, 36022), (581, 35464), (616, 33449), (664, 31031), (682, 30212), (728, 28303), (806, 25564), (868, 23738), (913, 22568), (1001, 20584), (1079, 19096), (1144, 18011), (1162, 17732), (1364, 15106), (1612, 12782), (1736, 11869), (1826, 11284), (2002, 10292), (2158, 9548), (2324, 8866), (2387, 8632), (2573, 8008), (2728, 7553), (2821, 7304), (3224, 6391), (3652, 5642), (4004, 5146), (4316, 4774), (4433, 4648)]