128256912

素因数分解:

$2^4\times 3^3\times 7^2\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 240

約数和(自身を含む): 439346880

約数和(自身を除く): 311089968

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 49, 54, 56, 63, 72, 73, 83, 84, 98, 108, 112, 126, 144, 146, 147, 166, 168, 189, 196, 216, 219, 249, 252, 292, 294, 332, 336, 378, 392, 432, 438, 441, 498, 504, 511, 581, 584, 588, 657, 664, 747, 756, 784, 876, 882, 996, 1008, 1022, 1162, 1168, 1176, 1314, 1323, 1328, 1494, 1512, 1533, 1743, 1752, 1764, 1971, 1992, 2044, 2241, 2324, 2352, 2628, 2646, 2988, 3024, 3066, 3486, 3504, 3528, 3577, 3942, 3984, 4067, 4088, 4482, 4599, 4648, 5229, 5256, 5292, 5976, 6059, 6132, 6972, 7056, 7154, 7884, 8134, 8176, 8964, 9198, 9296, 10458, 10512, 10584, 10731, 11952, 12118, 12201, 12264, 13797, 13944, 14308, 15687, 15768, 16268, 17928, 18177, 18396, 20916, 21168, 21462, 24236, 24402, 24528, 27594, 27888, 28616, 31374, 31536, 32193, 32536, 35856, 36354, 36603, 36792, 41832, 42413, 42924, 48472, 48804, 54531, 55188, 57232, 62748, 64386, 65072, 72708, 73206, 73584, 83664, 84826, 85848, 96579, 96944, 97608, 109062, 109809, 110376, 125496, 127239, 128772, 145416, 146412, 163593, 169652, 171696, 193158, 195216, 218124, 219618, 220752, 250992, 254478, 257544, 290832, 292824, 296891, 327186, 339304, 381717, 386316, 436248, 439236, 508956, 515088, 585648, 593782, 654372, 678608, 763434, 772632, 872496, 878472, 890673, 1017912, 1145151, 1187564, 1308744, 1526868, 1545264, 1756944, 1781346, 2035824, 2290302, 2375128, 2617488, 2672019, 3053736, 3562692, 4580604, 4750256, 5344038, 6107472, 7125384, 8016057, 9161208, 10688076, 14250768, 16032114, 18322416, 21376152, 32064228, 42752304, 64128456, 128256912]

約数ペア:

[(1, 128256912), (2, 64128456), (3, 42752304), (4, 32064228), (6, 21376152), (7, 18322416), (8, 16032114), (9, 14250768), (12, 10688076), (14, 9161208), (16, 8016057), (18, 7125384), (21, 6107472), (24, 5344038), (27, 4750256), (28, 4580604), (36, 3562692), (42, 3053736), (48, 2672019), (49, 2617488), (54, 2375128), (56, 2290302), (63, 2035824), (72, 1781346), (73, 1756944), (83, 1545264), (84, 1526868), (98, 1308744), (108, 1187564), (112, 1145151), (126, 1017912), (144, 890673), (146, 878472), (147, 872496), (166, 772632), (168, 763434), (189, 678608), (196, 654372), (216, 593782), (219, 585648), (249, 515088), (252, 508956), (292, 439236), (294, 436248), (332, 386316), (336, 381717), (378, 339304), (392, 327186), (432, 296891), (438, 292824), (441, 290832), (498, 257544), (504, 254478), (511, 250992), (581, 220752), (584, 219618), (588, 218124), (657, 195216), (664, 193158), (747, 171696), (756, 169652), (784, 163593), (876, 146412), (882, 145416), (996, 128772), (1008, 127239), (1022, 125496), (1162, 110376), (1168, 109809), (1176, 109062), (1314, 97608), (1323, 96944), (1328, 96579), (1494, 85848), (1512, 84826), (1533, 83664), (1743, 73584), (1752, 73206), (1764, 72708), (1971, 65072), (1992, 64386), (2044, 62748), (2241, 57232), (2324, 55188), (2352, 54531), (2628, 48804), (2646, 48472), (2988, 42924), (3024, 42413), (3066, 41832), (3486, 36792), (3504, 36603), (3528, 36354), (3577, 35856), (3942, 32536), (3984, 32193), (4067, 31536), (4088, 31374), (4482, 28616), (4599, 27888), (4648, 27594), (5229, 24528), (5256, 24402), (5292, 24236), (5976, 21462), (6059, 21168), (6132, 20916), (6972, 18396), (7056, 18177), (7154, 17928), (7884, 16268), (8134, 15768), (8176, 15687), (8964, 14308), (9198, 13944), (9296, 13797), (10458, 12264), (10512, 12201), (10584, 12118), (10731, 11952)]