257662188

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{181}}^1\times {\mathrm{269}}^1$

素因数の和:477

約数の個数: 144

約数和(自身を含む): 784274400

約数和(自身を除く): 526612212

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 181, 189, 196, 252, 269, 294, 362, 378, 441, 538, 543, 588, 724, 756, 807, 882, 1076, 1086, 1267, 1323, 1614, 1629, 1764, 1883, 2172, 2421, 2534, 2646, 3228, 3258, 3766, 3801, 4842, 4887, 5068, 5292, 5649, 6516, 7263, 7532, 7602, 8869, 9684, 9774, 11298, 11403, 13181, 14526, 15204, 16947, 17738, 19548, 22596, 22806, 26362, 26607, 29052, 33894, 34209, 35476, 39543, 45612, 48689, 50841, 52724, 53214, 67788, 68418, 79086, 79821, 97378, 101682, 106428, 118629, 136836, 146067, 158172, 159642, 194756, 203364, 237258, 239463, 292134, 319284, 340823, 355887, 438201, 474516, 478926, 584268, 681646, 711774, 876402, 957852, 1022469, 1314603, 1363292, 1423548, 1752804, 2044938, 2385761, 2629206, 3067407, 4089876, 4771522, 5258412, 6134814, 7157283, 9202221, 9543044, 12269628, 14314566, 18404442, 21471849, 28629132, 36808884, 42943698, 64415547, 85887396, 128831094, 257662188]

約数ペア:

[(1, 257662188), (2, 128831094), (3, 85887396), (4, 64415547), (6, 42943698), (7, 36808884), (9, 28629132), (12, 21471849), (14, 18404442), (18, 14314566), (21, 12269628), (27, 9543044), (28, 9202221), (36, 7157283), (42, 6134814), (49, 5258412), (54, 4771522), (63, 4089876), (84, 3067407), (98, 2629206), (108, 2385761), (126, 2044938), (147, 1752804), (181, 1423548), (189, 1363292), (196, 1314603), (252, 1022469), (269, 957852), (294, 876402), (362, 711774), (378, 681646), (441, 584268), (538, 478926), (543, 474516), (588, 438201), (724, 355887), (756, 340823), (807, 319284), (882, 292134), (1076, 239463), (1086, 237258), (1267, 203364), (1323, 194756), (1614, 159642), (1629, 158172), (1764, 146067), (1883, 136836), (2172, 118629), (2421, 106428), (2534, 101682), (2646, 97378), (3228, 79821), (3258, 79086), (3766, 68418), (3801, 67788), (4842, 53214), (4887, 52724), (5068, 50841), (5292, 48689), (5649, 45612), (6516, 39543), (7263, 35476), (7532, 34209), (7602, 33894), (8869, 29052), (9684, 26607), (9774, 26362), (11298, 22806), (11403, 22596), (13181, 19548), (14526, 17738), (15204, 16947)]