28978712

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 65664000

約数和(自身を除く): 36685288

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 149, 151, 161, 184, 298, 302, 322, 596, 604, 644, 1043, 1057, 1192, 1208, 1288, 2086, 2114, 3427, 3473, 4172, 4228, 6854, 6946, 8344, 8456, 13708, 13892, 22499, 23989, 24311, 27416, 27784, 44998, 47978, 48622, 89996, 95956, 97244, 157493, 179992, 191912, 194488, 314986, 517477, 629972, 1034954, 1259944, 2069908, 3622339, 4139816, 7244678, 14489356, 28978712]

約数ペア:

[(1, 28978712), (2, 14489356), (4, 7244678), (7, 4139816), (8, 3622339), (14, 2069908), (23, 1259944), (28, 1034954), (46, 629972), (56, 517477), (92, 314986), (149, 194488), (151, 191912), (161, 179992), (184, 157493), (298, 97244), (302, 95956), (322, 89996), (596, 48622), (604, 47978), (644, 44998), (1043, 27784), (1057, 27416), (1192, 24311), (1208, 23989), (1288, 22499), (2086, 13892), (2114, 13708), (3427, 8456), (3473, 8344), (4172, 6946), (4228, 6854)]