128123856

素因数分解:

$2^4\times 3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:543

約数の個数: 200

約数和(自身を含む): 439317120

約数和(自身を除く): 311193264

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 29, 36, 42, 48, 54, 56, 58, 63, 72, 81, 84, 87, 108, 112, 116, 126, 144, 162, 168, 174, 189, 203, 216, 232, 252, 261, 324, 336, 348, 378, 406, 432, 464, 487, 504, 522, 567, 609, 648, 696, 756, 783, 812, 974, 1008, 1044, 1134, 1218, 1296, 1392, 1461, 1512, 1566, 1624, 1827, 1948, 2088, 2268, 2349, 2436, 2922, 3024, 3132, 3248, 3409, 3654, 3896, 4176, 4383, 4536, 4698, 4872, 5481, 5844, 6264, 6818, 7308, 7792, 8766, 9072, 9396, 9744, 10227, 10962, 11688, 12528, 13149, 13636, 14123, 14616, 16443, 17532, 18792, 20454, 21924, 23376, 26298, 27272, 28246, 29232, 30681, 32886, 35064, 37584, 39447, 40908, 42369, 43848, 52596, 54544, 56492, 61362, 65772, 70128, 78894, 81816, 84738, 87696, 92043, 98861, 105192, 112984, 122724, 127107, 131544, 157788, 163632, 169476, 184086, 197722, 210384, 225968, 245448, 254214, 263088, 276129, 296583, 315576, 338952, 368172, 381321, 395444, 490896, 508428, 552258, 593166, 631152, 677904, 736344, 762642, 790888, 889749, 1016856, 1104516, 1143963, 1186332, 1472688, 1525284, 1581776, 1779498, 2033712, 2209032, 2287926, 2372664, 2669247, 3050568, 3558996, 4418064, 4575852, 4745328, 5338494, 6101136, 7117992, 8007741, 9151704, 10676988, 14235984, 16015482, 18303408, 21353976, 32030964, 42707952, 64061928, 128123856]

約数ペア:

[(1, 128123856), (2, 64061928), (3, 42707952), (4, 32030964), (6, 21353976), (7, 18303408), (8, 16015482), (9, 14235984), (12, 10676988), (14, 9151704), (16, 8007741), (18, 7117992), (21, 6101136), (24, 5338494), (27, 4745328), (28, 4575852), (29, 4418064), (36, 3558996), (42, 3050568), (48, 2669247), (54, 2372664), (56, 2287926), (58, 2209032), (63, 2033712), (72, 1779498), (81, 1581776), (84, 1525284), (87, 1472688), (108, 1186332), (112, 1143963), (116, 1104516), (126, 1016856), (144, 889749), (162, 790888), (168, 762642), (174, 736344), (189, 677904), (203, 631152), (216, 593166), (232, 552258), (252, 508428), (261, 490896), (324, 395444), (336, 381321), (348, 368172), (378, 338952), (406, 315576), (432, 296583), (464, 276129), (487, 263088), (504, 254214), (522, 245448), (567, 225968), (609, 210384), (648, 197722), (696, 184086), (756, 169476), (783, 163632), (812, 157788), (974, 131544), (1008, 127107), (1044, 122724), (1134, 112984), (1218, 105192), (1296, 98861), (1392, 92043), (1461, 87696), (1512, 84738), (1566, 81816), (1624, 78894), (1827, 70128), (1948, 65772), (2088, 61362), (2268, 56492), (2349, 54544), (2436, 52596), (2922, 43848), (3024, 42369), (3132, 40908), (3248, 39447), (3409, 37584), (3654, 35064), (3896, 32886), (4176, 30681), (4383, 29232), (4536, 28246), (4698, 27272), (4872, 26298), (5481, 23376), (5844, 21924), (6264, 20454), (6818, 18792), (7308, 17532), (7792, 16443), (8766, 14616), (9072, 14123), (9396, 13636), (9744, 13149), (10227, 12528), (10962, 11688)]