20281216

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{83}}^2$

素因数の和:203

約数の個数: 48

約数和(自身を含む): 42674760

約数和(自身を除く): 22393544

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 83, 92, 128, 166, 184, 332, 368, 664, 736, 1328, 1472, 1909, 2656, 2944, 3818, 5312, 6889, 7636, 10624, 13778, 15272, 27556, 30544, 55112, 61088, 110224, 122176, 158447, 220448, 244352, 316894, 440896, 633788, 881792, 1267576, 2535152, 5070304, 10140608, 20281216]

約数ペア:

[(1, 20281216), (2, 10140608), (4, 5070304), (8, 2535152), (16, 1267576), (23, 881792), (32, 633788), (46, 440896), (64, 316894), (83, 244352), (92, 220448), (128, 158447), (166, 122176), (184, 110224), (332, 61088), (368, 55112), (664, 30544), (736, 27556), (1328, 15272), (1472, 13778), (1909, 10624), (2656, 7636), (2944, 6889), (3818, 5312)]