20011264

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{859}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 49219520

約数和(自身を除く): 29208256

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 859, 896, 1456, 1664, 1718, 1792, 2912, 3328, 3436, 5824, 6013, 6872, 11167, 11648, 12026, 13744, 22334, 23296, 24052, 27488, 44668, 48104, 54976, 78169, 89336, 96208, 109952, 156338, 178672, 192416, 219904, 312676, 357344, 384832, 625352, 714688, 769664, 1250704, 1429376, 1539328, 2501408, 2858752, 5002816, 10005632, 20011264]

約数ペア:

[(1, 20011264), (2, 10005632), (4, 5002816), (7, 2858752), (8, 2501408), (13, 1539328), (14, 1429376), (16, 1250704), (26, 769664), (28, 714688), (32, 625352), (52, 384832), (56, 357344), (64, 312676), (91, 219904), (104, 192416), (112, 178672), (128, 156338), (182, 109952), (208, 96208), (224, 89336), (256, 78169), (364, 54976), (416, 48104), (448, 44668), (728, 27488), (832, 24052), (859, 23296), (896, 22334), (1456, 13744), (1664, 12026), (1718, 11648), (1792, 11167), (2912, 6872), (3328, 6013), (3436, 5824)]