20180400251

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{251}}^1\times {\mathrm{281}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 23996891520

約数和(自身を除く): 3816491269

約数列:

[1, 11, 19, 37, 209, 251, 281, 407, 703, 1369, 2761, 3091, 4769, 5339, 7733, 9287, 10397, 15059, 26011, 52459, 58729, 70531, 102157, 114367, 176453, 197543, 286121, 343619, 384689, 775841, 1340089, 1940983, 2172973, 2609647, 3779809, 4231579, 6528761, 7309091, 14740979, 28706117, 49583293, 71816371, 80400001, 96556939, 545416223, 1062126329, 1834581841, 20180400251]

約数ペア:

[(1, 20180400251), (11, 1834581841), (19, 1062126329), (37, 545416223), (209, 96556939), (251, 80400001), (281, 71816371), (407, 49583293), (703, 28706117), (1369, 14740979), (2761, 7309091), (3091, 6528761), (4769, 4231579), (5339, 3779809), (7733, 2609647), (9287, 2172973), (10397, 1940983), (15059, 1340089), (26011, 775841), (52459, 384689), (58729, 343619), (70531, 286121), (102157, 197543), (114367, 176453)]