256863768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:158

約数の個数: 192

約数和(自身を含む): 796942080

約数和(自身を除く): 540078312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 37, 42, 43, 56, 62, 74, 84, 86, 93, 111, 124, 129, 148, 168, 172, 186, 217, 222, 248, 258, 259, 296, 301, 344, 372, 434, 444, 516, 518, 602, 651, 744, 777, 868, 888, 903, 961, 1032, 1036, 1147, 1204, 1302, 1333, 1554, 1591, 1736, 1806, 1922, 2072, 2294, 2408, 2604, 2666, 2883, 3108, 3182, 3441, 3612, 3844, 3999, 4588, 4773, 5208, 5332, 5766, 6216, 6364, 6727, 6882, 7224, 7688, 7998, 8029, 9176, 9331, 9546, 10664, 11137, 11532, 12728, 13454, 13764, 15996, 16058, 18662, 19092, 20181, 22274, 23064, 24087, 26908, 27528, 27993, 31992, 32116, 33411, 35557, 37324, 38184, 40362, 41323, 44548, 48174, 49321, 53816, 55986, 64232, 66822, 71114, 74648, 80724, 82646, 89096, 96348, 98642, 106671, 111972, 123969, 133644, 142228, 147963, 161448, 165292, 192696, 197284, 213342, 223944, 247938, 248899, 267288, 284456, 289261, 295926, 330584, 345247, 394568, 426684, 495876, 497798, 578522, 591852, 690494, 746697, 853368, 867783, 991752, 995596, 1035741, 1157044, 1183704, 1380988, 1493394, 1528951, 1735566, 1991192, 2071482, 2314088, 2761976, 2986788, 3057902, 3471132, 4142964, 4586853, 5973576, 6115804, 6942264, 8285928, 9173706, 10702657, 12231608, 18347412, 21405314, 32107971, 36694824, 42810628, 64215942, 85621256, 128431884, 256863768]

約数ペア:

[(1, 256863768), (2, 128431884), (3, 85621256), (4, 64215942), (6, 42810628), (7, 36694824), (8, 32107971), (12, 21405314), (14, 18347412), (21, 12231608), (24, 10702657), (28, 9173706), (31, 8285928), (37, 6942264), (42, 6115804), (43, 5973576), (56, 4586853), (62, 4142964), (74, 3471132), (84, 3057902), (86, 2986788), (93, 2761976), (111, 2314088), (124, 2071482), (129, 1991192), (148, 1735566), (168, 1528951), (172, 1493394), (186, 1380988), (217, 1183704), (222, 1157044), (248, 1035741), (258, 995596), (259, 991752), (296, 867783), (301, 853368), (344, 746697), (372, 690494), (434, 591852), (444, 578522), (516, 497798), (518, 495876), (602, 426684), (651, 394568), (744, 345247), (777, 330584), (868, 295926), (888, 289261), (903, 284456), (961, 267288), (1032, 248899), (1036, 247938), (1147, 223944), (1204, 213342), (1302, 197284), (1333, 192696), (1554, 165292), (1591, 161448), (1736, 147963), (1806, 142228), (1922, 133644), (2072, 123969), (2294, 111972), (2408, 106671), (2604, 98642), (2666, 96348), (2883, 89096), (3108, 82646), (3182, 80724), (3441, 74648), (3612, 71114), (3844, 66822), (3999, 64232), (4588, 55986), (4773, 53816), (5208, 49321), (5332, 48174), (5766, 44548), (6216, 41323), (6364, 40362), (6727, 38184), (6882, 37324), (7224, 35557), (7688, 33411), (7998, 32116), (8029, 31992), (9176, 27993), (9331, 27528), (9546, 26908), (10664, 24087), (11137, 23064), (11532, 22274), (12728, 20181), (13454, 19092), (13764, 18662), (15996, 16058)]