645675520

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:430

約数の個数: 160

約数和(自身を含む): 1788956928

約数和(自身を除く): 1143281408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 137, 140, 160, 224, 256, 263, 274, 280, 320, 448, 512, 526, 548, 560, 640, 685, 896, 959, 1052, 1096, 1120, 1280, 1315, 1370, 1792, 1841, 1918, 2104, 2192, 2240, 2560, 2630, 2740, 3584, 3682, 3836, 4208, 4384, 4480, 4795, 5260, 5480, 7364, 7672, 8416, 8768, 8960, 9205, 9590, 10520, 10960, 14728, 15344, 16832, 17536, 17920, 18410, 19180, 21040, 21920, 29456, 30688, 33664, 35072, 36031, 36820, 38360, 42080, 43840, 58912, 61376, 67328, 70144, 72062, 73640, 76720, 84160, 87680, 117824, 122752, 134656, 144124, 147280, 153440, 168320, 175360, 180155, 235648, 245504, 252217, 288248, 294560, 306880, 336640, 350720, 360310, 471296, 491008, 504434, 576496, 589120, 613760, 673280, 720620, 942592, 1008868, 1152992, 1178240, 1227520, 1261085, 1441240, 2017736, 2305984, 2356480, 2455040, 2522170, 2882480, 4035472, 4611968, 4712960, 5044340, 5764960, 8070944, 9223936, 10088680, 11529920, 16141888, 18447872, 20177360, 23059840, 32283776, 40354720, 46119680, 64567552, 80709440, 92239360, 129135104, 161418880, 322837760, 645675520]

約数ペア:

[(1, 645675520), (2, 322837760), (4, 161418880), (5, 129135104), (7, 92239360), (8, 80709440), (10, 64567552), (14, 46119680), (16, 40354720), (20, 32283776), (28, 23059840), (32, 20177360), (35, 18447872), (40, 16141888), (56, 11529920), (64, 10088680), (70, 9223936), (80, 8070944), (112, 5764960), (128, 5044340), (137, 4712960), (140, 4611968), (160, 4035472), (224, 2882480), (256, 2522170), (263, 2455040), (274, 2356480), (280, 2305984), (320, 2017736), (448, 1441240), (512, 1261085), (526, 1227520), (548, 1178240), (560, 1152992), (640, 1008868), (685, 942592), (896, 720620), (959, 673280), (1052, 613760), (1096, 589120), (1120, 576496), (1280, 504434), (1315, 491008), (1370, 471296), (1792, 360310), (1841, 350720), (1918, 336640), (2104, 306880), (2192, 294560), (2240, 288248), (2560, 252217), (2630, 245504), (2740, 235648), (3584, 180155), (3682, 175360), (3836, 168320), (4208, 153440), (4384, 147280), (4480, 144124), (4795, 134656), (5260, 122752), (5480, 117824), (7364, 87680), (7672, 84160), (8416, 76720), (8768, 73640), (8960, 72062), (9205, 70144), (9590, 67328), (10520, 61376), (10960, 58912), (14728, 43840), (15344, 42080), (16832, 38360), (17536, 36820), (17920, 36031), (18410, 35072), (19180, 33664), (21040, 30688), (21920, 29456)]