257900656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:159

約数の個数: 160

約数和(自身を含む): 607961088

約数和(自身を除く): 350060432

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 31, 37, 46, 47, 52, 62, 74, 92, 94, 104, 124, 148, 184, 188, 208, 248, 296, 299, 368, 376, 403, 481, 496, 592, 598, 611, 713, 752, 806, 851, 962, 1081, 1147, 1196, 1222, 1426, 1457, 1612, 1702, 1739, 1924, 2162, 2294, 2392, 2444, 2852, 2914, 3224, 3404, 3478, 3848, 4324, 4588, 4784, 4888, 5704, 5828, 6448, 6808, 6956, 7696, 8648, 9176, 9269, 9776, 11063, 11408, 11656, 13616, 13912, 14053, 14911, 17296, 18352, 18538, 18941, 22126, 22607, 23312, 26381, 27824, 28106, 29822, 33511, 37076, 37882, 39997, 44252, 45214, 52762, 53909, 56212, 59644, 67022, 74152, 75764, 79994, 88504, 90428, 105524, 107818, 112424, 119288, 134044, 148304, 151528, 159988, 177008, 180856, 211048, 215636, 224848, 238576, 268088, 303056, 319976, 342953, 361712, 422096, 431272, 435643, 519961, 536176, 639952, 685906, 700817, 862544, 871286, 1039922, 1239907, 1371812, 1401634, 1742572, 2079844, 2479814, 2743624, 2803268, 3485144, 4159688, 4959628, 5487248, 5606536, 6970288, 8319376, 9919256, 11213072, 16118791, 19838512, 32237582, 64475164, 128950328, 257900656]

約数ペア:

[(1, 257900656), (2, 128950328), (4, 64475164), (8, 32237582), (13, 19838512), (16, 16118791), (23, 11213072), (26, 9919256), (31, 8319376), (37, 6970288), (46, 5606536), (47, 5487248), (52, 4959628), (62, 4159688), (74, 3485144), (92, 2803268), (94, 2743624), (104, 2479814), (124, 2079844), (148, 1742572), (184, 1401634), (188, 1371812), (208, 1239907), (248, 1039922), (296, 871286), (299, 862544), (368, 700817), (376, 685906), (403, 639952), (481, 536176), (496, 519961), (592, 435643), (598, 431272), (611, 422096), (713, 361712), (752, 342953), (806, 319976), (851, 303056), (962, 268088), (1081, 238576), (1147, 224848), (1196, 215636), (1222, 211048), (1426, 180856), (1457, 177008), (1612, 159988), (1702, 151528), (1739, 148304), (1924, 134044), (2162, 119288), (2294, 112424), (2392, 107818), (2444, 105524), (2852, 90428), (2914, 88504), (3224, 79994), (3404, 75764), (3478, 74152), (3848, 67022), (4324, 59644), (4588, 56212), (4784, 53909), (4888, 52762), (5704, 45214), (5828, 44252), (6448, 39997), (6808, 37882), (6956, 37076), (7696, 33511), (8648, 29822), (9176, 28106), (9269, 27824), (9776, 26381), (11063, 23312), (11408, 22607), (11656, 22126), (13616, 18941), (13912, 18538), (14053, 18352), (14911, 17296)]