18236128

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 38087280

約数和(自身を除く): 19851152

約数列:

[1, 2, 4, 8, 16, 29, 32, 43, 58, 86, 116, 172, 232, 344, 457, 464, 688, 914, 928, 1247, 1376, 1828, 2494, 3656, 4988, 7312, 9976, 13253, 14624, 19651, 19952, 26506, 39302, 39904, 53012, 78604, 106024, 157208, 212048, 314416, 424096, 569879, 628832, 1139758, 2279516, 4559032, 9118064, 18236128]

約数ペア:

[(1, 18236128), (2, 9118064), (4, 4559032), (8, 2279516), (16, 1139758), (29, 628832), (32, 569879), (43, 424096), (58, 314416), (86, 212048), (116, 157208), (172, 106024), (232, 78604), (344, 53012), (457, 39904), (464, 39302), (688, 26506), (914, 19952), (928, 19651), (1247, 14624), (1376, 13253), (1828, 9976), (2494, 7312), (3656, 4988)]