251171982

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 622080000

約数和(自身を除く): 370908018

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 31, 38, 53, 54, 57, 62, 93, 106, 114, 149, 159, 171, 186, 279, 298, 318, 342, 447, 477, 513, 558, 589, 837, 894, 954, 1007, 1026, 1178, 1341, 1431, 1643, 1674, 1767, 2014, 2682, 2831, 2862, 3021, 3286, 3534, 4023, 4619, 4929, 5301, 5662, 6042, 7897, 8046, 8493, 9063, 9238, 9858, 10602, 13857, 14787, 15794, 15903, 16986, 18126, 23691, 25479, 27189, 27714, 29574, 31217, 31806, 41571, 44361, 47382, 50958, 54378, 62434, 71073, 76437, 83142, 87761, 88722, 93651, 124713, 142146, 150043, 152874, 175522, 187302, 213219, 244807, 249426, 263283, 280953, 300086, 426438, 450129, 489614, 526566, 561906, 734421, 789849, 842859, 900258, 1350387, 1468842, 1579698, 1685718, 2203263, 2369547, 2700774, 4051161, 4406526, 4651333, 4739094, 6609789, 8102322, 9302666, 13219578, 13953999, 27907998, 41861997, 83723994, 125585991, 251171982]

約数ペア:

[(1, 251171982), (2, 125585991), (3, 83723994), (6, 41861997), (9, 27907998), (18, 13953999), (19, 13219578), (27, 9302666), (31, 8102322), (38, 6609789), (53, 4739094), (54, 4651333), (57, 4406526), (62, 4051161), (93, 2700774), (106, 2369547), (114, 2203263), (149, 1685718), (159, 1579698), (171, 1468842), (186, 1350387), (279, 900258), (298, 842859), (318, 789849), (342, 734421), (447, 561906), (477, 526566), (513, 489614), (558, 450129), (589, 426438), (837, 300086), (894, 280953), (954, 263283), (1007, 249426), (1026, 244807), (1178, 213219), (1341, 187302), (1431, 175522), (1643, 152874), (1674, 150043), (1767, 142146), (2014, 124713), (2682, 93651), (2831, 88722), (2862, 87761), (3021, 83142), (3286, 76437), (3534, 71073), (4023, 62434), (4619, 54378), (4929, 50958), (5301, 47382), (5662, 44361), (6042, 41571), (7897, 31806), (8046, 31217), (8493, 29574), (9063, 27714), (9238, 27189), (9858, 25479), (10602, 23691), (13857, 18126), (14787, 16986), (15794, 15903)]