20299888

素因数分解:

$2^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{859}}^1$

素因数の和:1085

約数の個数: 40

約数和(自身を含む): 45215360

約数和(自身を除く): 24915472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 211, 422, 844, 859, 1477, 1688, 1718, 2954, 3376, 3436, 5908, 6013, 6872, 11816, 12026, 13744, 23632, 24052, 48104, 96208, 181249, 362498, 724996, 1268743, 1449992, 2537486, 2899984, 5074972, 10149944, 20299888]

約数ペア:

[(1, 20299888), (2, 10149944), (4, 5074972), (7, 2899984), (8, 2537486), (14, 1449992), (16, 1268743), (28, 724996), (56, 362498), (112, 181249), (211, 96208), (422, 48104), (844, 24052), (859, 23632), (1477, 13744), (1688, 12026), (1718, 11816), (2954, 6872), (3376, 6013), (3436, 5908)]