20237728

素因数分解:

$2^5\times 7^1\times {\mathrm{167}}^1\times {\mathrm{541}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 45892224

約数和(自身を除く): 25654496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 167, 224, 334, 541, 668, 1082, 1169, 1336, 2164, 2338, 2672, 3787, 4328, 4676, 5344, 7574, 8656, 9352, 15148, 17312, 18704, 30296, 37408, 60592, 90347, 121184, 180694, 361388, 632429, 722776, 1264858, 1445552, 2529716, 2891104, 5059432, 10118864, 20237728]

約数ペア:

[(1, 20237728), (2, 10118864), (4, 5059432), (7, 2891104), (8, 2529716), (14, 1445552), (16, 1264858), (28, 722776), (32, 632429), (56, 361388), (112, 180694), (167, 121184), (224, 90347), (334, 60592), (541, 37408), (668, 30296), (1082, 18704), (1169, 17312), (1336, 15148), (2164, 9352), (2338, 8656), (2672, 7574), (3787, 5344), (4328, 4676)]