20757088

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 45072720

約数和(自身を除く): 24315632

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 109, 176, 218, 352, 436, 541, 872, 1082, 1199, 1744, 2164, 2398, 3488, 4328, 4796, 5951, 8656, 9592, 11902, 17312, 19184, 23804, 38368, 47608, 58969, 95216, 117938, 190432, 235876, 471752, 648659, 943504, 1297318, 1887008, 2594636, 5189272, 10378544, 20757088]

約数ペア:

[(1, 20757088), (2, 10378544), (4, 5189272), (8, 2594636), (11, 1887008), (16, 1297318), (22, 943504), (32, 648659), (44, 471752), (88, 235876), (109, 190432), (176, 117938), (218, 95216), (352, 58969), (436, 47608), (541, 38368), (872, 23804), (1082, 19184), (1199, 17312), (1744, 11902), (2164, 9592), (2398, 8656), (3488, 5951), (4328, 4796)]