20709744

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:726

約数の個数: 80

約数和(自身を含む): 59412864

約数和(自身を除く): 38703120

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 61, 66, 88, 122, 132, 176, 183, 244, 264, 366, 488, 528, 643, 671, 732, 976, 1286, 1342, 1464, 1929, 2013, 2572, 2684, 2928, 3858, 4026, 5144, 5368, 7073, 7716, 8052, 10288, 10736, 14146, 15432, 16104, 21219, 28292, 30864, 32208, 39223, 42438, 56584, 78446, 84876, 113168, 117669, 156892, 169752, 235338, 313784, 339504, 431453, 470676, 627568, 862906, 941352, 1294359, 1725812, 1882704, 2588718, 3451624, 5177436, 6903248, 10354872, 20709744]

約数ペア:

[(1, 20709744), (2, 10354872), (3, 6903248), (4, 5177436), (6, 3451624), (8, 2588718), (11, 1882704), (12, 1725812), (16, 1294359), (22, 941352), (24, 862906), (33, 627568), (44, 470676), (48, 431453), (61, 339504), (66, 313784), (88, 235338), (122, 169752), (132, 156892), (176, 117669), (183, 113168), (244, 84876), (264, 78446), (366, 56584), (488, 42438), (528, 39223), (643, 32208), (671, 30864), (732, 28292), (976, 21219), (1286, 16104), (1342, 15432), (1464, 14146), (1929, 10736), (2013, 10288), (2572, 8052), (2684, 7716), (2928, 7073), (3858, 5368), (4026, 5144)]