181657138

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 331914240

約数和(自身を除く): 150257102

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 97, 194, 221, 223, 247, 323, 442, 446, 494, 646, 1261, 1649, 1843, 2522, 2899, 3298, 3686, 3791, 4199, 4237, 5798, 7582, 8398, 8474, 21437, 21631, 23959, 31331, 42874, 43262, 47918, 49283, 55081, 62662, 72029, 98566, 110162, 144058, 281203, 367727, 407303, 410989, 562406, 735454, 814606, 821978, 936377, 1872754, 4780451, 5342857, 6986813, 9560902, 10685714, 13973626, 90828569, 181657138]

約数ペア:

[(1, 181657138), (2, 90828569), (13, 13973626), (17, 10685714), (19, 9560902), (26, 6986813), (34, 5342857), (38, 4780451), (97, 1872754), (194, 936377), (221, 821978), (223, 814606), (247, 735454), (323, 562406), (442, 410989), (446, 407303), (494, 367727), (646, 281203), (1261, 144058), (1649, 110162), (1843, 98566), (2522, 72029), (2899, 62662), (3298, 55081), (3686, 49283), (3791, 47918), (4199, 43262), (4237, 42874), (5798, 31331), (7582, 23959), (8398, 21631), (8474, 21437)]