256347468

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:396

約数の個数: 144

約数和(自身を含む): 743608320

約数和(自身を除く): 487260852

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 127, 156, 171, 227, 228, 234, 247, 254, 342, 381, 454, 468, 494, 508, 681, 684, 741, 762, 908, 988, 1143, 1362, 1482, 1524, 1651, 2043, 2223, 2286, 2413, 2724, 2951, 2964, 3302, 4086, 4313, 4446, 4572, 4826, 4953, 5902, 6604, 7239, 8172, 8626, 8853, 8892, 9652, 9906, 11804, 12939, 14478, 14859, 17252, 17706, 19812, 21717, 25878, 26559, 28829, 28956, 29718, 31369, 35412, 38817, 43434, 51756, 53118, 56069, 57658, 59436, 62738, 77634, 86487, 86868, 94107, 106236, 112138, 115316, 125476, 155268, 168207, 172974, 188214, 224276, 259461, 282321, 336414, 345948, 374777, 376428, 504621, 518922, 547751, 564642, 672828, 749554, 1009242, 1037844, 1095502, 1124331, 1129284, 1499108, 1643253, 2018484, 2191004, 2248662, 3286506, 3372993, 4497324, 4929759, 6573012, 6745986, 7120763, 9859518, 13491972, 14241526, 19719036, 21362289, 28483052, 42724578, 64086867, 85449156, 128173734, 256347468]

約数ペア:

[(1, 256347468), (2, 128173734), (3, 85449156), (4, 64086867), (6, 42724578), (9, 28483052), (12, 21362289), (13, 19719036), (18, 14241526), (19, 13491972), (26, 9859518), (36, 7120763), (38, 6745986), (39, 6573012), (52, 4929759), (57, 4497324), (76, 3372993), (78, 3286506), (114, 2248662), (117, 2191004), (127, 2018484), (156, 1643253), (171, 1499108), (227, 1129284), (228, 1124331), (234, 1095502), (247, 1037844), (254, 1009242), (342, 749554), (381, 672828), (454, 564642), (468, 547751), (494, 518922), (508, 504621), (681, 376428), (684, 374777), (741, 345948), (762, 336414), (908, 282321), (988, 259461), (1143, 224276), (1362, 188214), (1482, 172974), (1524, 168207), (1651, 155268), (2043, 125476), (2223, 115316), (2286, 112138), (2413, 106236), (2724, 94107), (2951, 86868), (2964, 86487), (3302, 77634), (4086, 62738), (4313, 59436), (4446, 57658), (4572, 56069), (4826, 53118), (4953, 51756), (5902, 43434), (6604, 38817), (7239, 35412), (8172, 31369), (8626, 29718), (8853, 28956), (8892, 28829), (9652, 26559), (9906, 25878), (11804, 21717), (12939, 19812), (14478, 17706), (14859, 17252)]