257705448

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:688

約数の個数: 256

約数和(自身を含む): 917360640

約数和(自身を除く): 659655192

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 17, 21, 22, 24, 26, 28, 33, 34, 39, 42, 44, 51, 52, 56, 66, 68, 77, 78, 84, 88, 91, 102, 104, 119, 132, 136, 143, 154, 156, 168, 182, 187, 204, 221, 231, 238, 264, 273, 286, 308, 312, 357, 364, 374, 408, 429, 442, 462, 476, 546, 561, 572, 616, 631, 663, 714, 728, 748, 858, 884, 924, 952, 1001, 1092, 1122, 1144, 1262, 1309, 1326, 1428, 1496, 1547, 1716, 1768, 1848, 1893, 2002, 2184, 2244, 2431, 2524, 2618, 2652, 2856, 3003, 3094, 3432, 3786, 3927, 4004, 4417, 4488, 4641, 4862, 5048, 5236, 5304, 6006, 6188, 6941, 7293, 7572, 7854, 8008, 8203, 8834, 9282, 9724, 10472, 10727, 12012, 12376, 13251, 13882, 14586, 15144, 15708, 16406, 17017, 17668, 18564, 19448, 20823, 21454, 24024, 24609, 26502, 27764, 29172, 31416, 32181, 32812, 34034, 35336, 37128, 41646, 42908, 48587, 49218, 51051, 53004, 55528, 57421, 58344, 64362, 65624, 68068, 75089, 83292, 85816, 90233, 97174, 98436, 102102, 106008, 114842, 117997, 128724, 136136, 139451, 145761, 150178, 166584, 172263, 180466, 194348, 196872, 204204, 225267, 229684, 235994, 257448, 270699, 278902, 291522, 300356, 344526, 353991, 360932, 388696, 408408, 418353, 450534, 459368, 471988, 541398, 557804, 583044, 600712, 631631, 689052, 707982, 721864, 825979, 836706, 901068, 943976, 976157, 1082796, 1115608, 1166088, 1263262, 1378104, 1415964, 1533961, 1651958, 1673412, 1802136, 1894893, 1952314, 2165592, 2477937, 2526524, 2831928, 2928471, 3067922, 3303916, 3346824, 3789786, 3904628, 4601883, 4955874, 5053048, 5856942, 6135844, 6607832, 7579572, 7809256, 9203766, 9911748, 10737727, 11713884, 12271688, 15159144, 18407532, 19823496, 21475454, 23427768, 32213181, 36815064, 42950908, 64426362, 85901816, 128852724, 257705448]

約数ペア:

[(1, 257705448), (2, 128852724), (3, 85901816), (4, 64426362), (6, 42950908), (7, 36815064), (8, 32213181), (11, 23427768), (12, 21475454), (13, 19823496), (14, 18407532), (17, 15159144), (21, 12271688), (22, 11713884), (24, 10737727), (26, 9911748), (28, 9203766), (33, 7809256), (34, 7579572), (39, 6607832), (42, 6135844), (44, 5856942), (51, 5053048), (52, 4955874), (56, 4601883), (66, 3904628), (68, 3789786), (77, 3346824), (78, 3303916), (84, 3067922), (88, 2928471), (91, 2831928), (102, 2526524), (104, 2477937), (119, 2165592), (132, 1952314), (136, 1894893), (143, 1802136), (154, 1673412), (156, 1651958), (168, 1533961), (182, 1415964), (187, 1378104), (204, 1263262), (221, 1166088), (231, 1115608), (238, 1082796), (264, 976157), (273, 943976), (286, 901068), (308, 836706), (312, 825979), (357, 721864), (364, 707982), (374, 689052), (408, 631631), (429, 600712), (442, 583044), (462, 557804), (476, 541398), (546, 471988), (561, 459368), (572, 450534), (616, 418353), (631, 408408), (663, 388696), (714, 360932), (728, 353991), (748, 344526), (858, 300356), (884, 291522), (924, 278902), (952, 270699), (1001, 257448), (1092, 235994), (1122, 229684), (1144, 225267), (1262, 204204), (1309, 196872), (1326, 194348), (1428, 180466), (1496, 172263), (1547, 166584), (1716, 150178), (1768, 145761), (1848, 139451), (1893, 136136), (2002, 128724), (2184, 117997), (2244, 114842), (2431, 106008), (2524, 102102), (2618, 98436), (2652, 97174), (2856, 90233), (3003, 85816), (3094, 83292), (3432, 75089), (3786, 68068), (3927, 65624), (4004, 64362), (4417, 58344), (4488, 57421), (4641, 55528), (4862, 53004), (5048, 51051), (5236, 49218), (5304, 48587), (6006, 42908), (6188, 41646), (6941, 37128), (7293, 35336), (7572, 34034), (7854, 32812), (8008, 32181), (8203, 31416), (8834, 29172), (9282, 27764), (9724, 26502), (10472, 24609), (10727, 24024), (12012, 21454), (12376, 20823), (13251, 19448), (13882, 18564), (14586, 17668), (15144, 17017), (15708, 16406)]