20745472

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 46357920

約数和(自身を除く): 25612448

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 64, 88, 106, 128, 139, 176, 212, 256, 278, 352, 424, 556, 583, 704, 848, 1112, 1166, 1408, 1529, 1696, 2224, 2332, 2816, 3058, 3392, 4448, 4664, 6116, 6784, 7367, 8896, 9328, 12232, 13568, 14734, 17792, 18656, 24464, 29468, 35584, 37312, 48928, 58936, 74624, 81037, 97856, 117872, 149248, 162074, 195712, 235744, 324148, 391424, 471488, 648296, 942976, 1296592, 1885952, 2593184, 5186368, 10372736, 20745472]

約数ペア:

[(1, 20745472), (2, 10372736), (4, 5186368), (8, 2593184), (11, 1885952), (16, 1296592), (22, 942976), (32, 648296), (44, 471488), (53, 391424), (64, 324148), (88, 235744), (106, 195712), (128, 162074), (139, 149248), (176, 117872), (212, 97856), (256, 81037), (278, 74624), (352, 58936), (424, 48928), (556, 37312), (583, 35584), (704, 29468), (848, 24464), (1112, 18656), (1166, 17792), (1408, 14734), (1529, 13568), (1696, 12232), (2224, 9328), (2332, 8896), (2816, 7367), (3058, 6784), (3392, 6116), (4448, 4664)]