388657920

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:811

約数の個数: 288

約数和(自身を含む): 1495226880

約数和(自身を除く): 1106568960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 64, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 128, 133, 140, 152, 160, 168, 190, 192, 210, 224, 228, 240, 256, 266, 280, 285, 304, 320, 336, 380, 384, 399, 420, 448, 456, 480, 532, 560, 570, 608, 640, 665, 672, 760, 761, 768, 798, 840, 896, 912, 960, 1064, 1120, 1140, 1216, 1280, 1330, 1344, 1520, 1522, 1596, 1680, 1792, 1824, 1920, 1995, 2128, 2240, 2280, 2283, 2432, 2660, 2688, 3040, 3044, 3192, 3360, 3648, 3805, 3840, 3990, 4256, 4480, 4560, 4566, 4864, 5320, 5327, 5376, 6080, 6088, 6384, 6720, 7296, 7610, 7980, 8512, 8960, 9120, 9132, 10640, 10654, 11415, 12160, 12176, 12768, 13440, 14459, 14592, 15220, 15960, 15981, 17024, 18240, 18264, 21280, 21308, 22830, 24320, 24352, 25536, 26635, 26880, 28918, 30440, 31920, 31962, 34048, 36480, 36528, 42560, 42616, 43377, 45660, 48704, 51072, 53270, 57836, 60880, 63840, 63924, 72295, 72960, 73056, 79905, 85120, 85232, 86754, 91320, 97408, 101213, 102144, 106540, 115672, 121760, 127680, 127848, 144590, 146112, 159810, 170240, 170464, 173508, 182640, 194816, 202426, 213080, 216885, 231344, 243520, 255360, 255696, 289180, 292224, 303639, 319620, 340928, 347016, 365280, 404852, 426160, 433770, 462688, 487040, 506065, 510720, 511392, 578360, 584448, 607278, 639240, 681856, 694032, 730560, 809704, 852320, 867540, 925376, 974080, 1012130, 1022784, 1156720, 1214556, 1278480, 1363712, 1388064, 1461120, 1518195, 1619408, 1704640, 1735080, 1850752, 2024260, 2045568, 2313440, 2429112, 2556960, 2776128, 2922240, 3036390, 3238816, 3409280, 3470160, 3701504, 4048520, 4091136, 4626880, 4858224, 5113920, 5552256, 6072780, 6477632, 6818560, 6940320, 8097040, 9253760, 9716448, 10227840, 11104512, 12145560, 12955264, 13880640, 16194080, 18507520, 19432896, 20455680, 24291120, 25910528, 27761280, 32388160, 38865792, 48582240, 55522560, 64776320, 77731584, 97164480, 129552640, 194328960, 388657920]

約数ペア:

[(1, 388657920), (2, 194328960), (3, 129552640), (4, 97164480), (5, 77731584), (6, 64776320), (7, 55522560), (8, 48582240), (10, 38865792), (12, 32388160), (14, 27761280), (15, 25910528), (16, 24291120), (19, 20455680), (20, 19432896), (21, 18507520), (24, 16194080), (28, 13880640), (30, 12955264), (32, 12145560), (35, 11104512), (38, 10227840), (40, 9716448), (42, 9253760), (48, 8097040), (56, 6940320), (57, 6818560), (60, 6477632), (64, 6072780), (70, 5552256), (76, 5113920), (80, 4858224), (84, 4626880), (95, 4091136), (96, 4048520), (105, 3701504), (112, 3470160), (114, 3409280), (120, 3238816), (128, 3036390), (133, 2922240), (140, 2776128), (152, 2556960), (160, 2429112), (168, 2313440), (190, 2045568), (192, 2024260), (210, 1850752), (224, 1735080), (228, 1704640), (240, 1619408), (256, 1518195), (266, 1461120), (280, 1388064), (285, 1363712), (304, 1278480), (320, 1214556), (336, 1156720), (380, 1022784), (384, 1012130), (399, 974080), (420, 925376), (448, 867540), (456, 852320), (480, 809704), (532, 730560), (560, 694032), (570, 681856), (608, 639240), (640, 607278), (665, 584448), (672, 578360), (760, 511392), (761, 510720), (768, 506065), (798, 487040), (840, 462688), (896, 433770), (912, 426160), (960, 404852), (1064, 365280), (1120, 347016), (1140, 340928), (1216, 319620), (1280, 303639), (1330, 292224), (1344, 289180), (1520, 255696), (1522, 255360), (1596, 243520), (1680, 231344), (1792, 216885), (1824, 213080), (1920, 202426), (1995, 194816), (2128, 182640), (2240, 173508), (2280, 170464), (2283, 170240), (2432, 159810), (2660, 146112), (2688, 144590), (3040, 127848), (3044, 127680), (3192, 121760), (3360, 115672), (3648, 106540), (3805, 102144), (3840, 101213), (3990, 97408), (4256, 91320), (4480, 86754), (4560, 85232), (4566, 85120), (4864, 79905), (5320, 73056), (5327, 72960), (5376, 72295), (6080, 63924), (6088, 63840), (6384, 60880), (6720, 57836), (7296, 53270), (7610, 51072), (7980, 48704), (8512, 45660), (8960, 43377), (9120, 42616), (9132, 42560), (10640, 36528), (10654, 36480), (11415, 34048), (12160, 31962), (12176, 31920), (12768, 30440), (13440, 28918), (14459, 26880), (14592, 26635), (15220, 25536), (15960, 24352), (15981, 24320), (17024, 22830), (18240, 21308), (18264, 21280)]