78986880

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{653}}^1$

素因数の和:688

約数の個数: 256

約数和(自身を含む): 320198400

約数和(自身を除く): 241211520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 653, 672, 720, 756, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1306, 1344, 1440, 1512, 1680, 1728, 1890, 1920, 1959, 2016, 2160, 2240, 2520, 2612, 2688, 2880, 3024, 3265, 3360, 3456, 3780, 3918, 4032, 4320, 4480, 4571, 5040, 5224, 5760, 5877, 6048, 6530, 6720, 7560, 7836, 8064, 8640, 9142, 9795, 10080, 10448, 11754, 12096, 13060, 13440, 13713, 15120, 15672, 17280, 17631, 18284, 19590, 20160, 20896, 22855, 23508, 24192, 26120, 27426, 29385, 30240, 31344, 35262, 36568, 39180, 40320, 41139, 41792, 45710, 47016, 52240, 54852, 58770, 60480, 62688, 68565, 70524, 73136, 78360, 82278, 83584, 88155, 91420, 94032, 104480, 109704, 117540, 120960, 123417, 125376, 137130, 141048, 146272, 156720, 164556, 176310, 182840, 188064, 205695, 208960, 219408, 235080, 246834, 250752, 274260, 282096, 292544, 313440, 329112, 352620, 365680, 376128, 411390, 417920, 438816, 470160, 493668, 548520, 564192, 585088, 617085, 626880, 658224, 705240, 731360, 752256, 822780, 877632, 940320, 987336, 1097040, 1128384, 1234170, 1253760, 1316448, 1410480, 1462720, 1645560, 1755264, 1880640, 1974672, 2194080, 2256768, 2468340, 2632896, 2820960, 2925440, 3291120, 3761280, 3949344, 4388160, 4936680, 5265792, 5641920, 6582240, 7898688, 8776320, 9873360, 11283840, 13164480, 15797376, 19746720, 26328960, 39493440, 78986880]

約数ペア:

[(1, 78986880), (2, 39493440), (3, 26328960), (4, 19746720), (5, 15797376), (6, 13164480), (7, 11283840), (8, 9873360), (9, 8776320), (10, 7898688), (12, 6582240), (14, 5641920), (15, 5265792), (16, 4936680), (18, 4388160), (20, 3949344), (21, 3761280), (24, 3291120), (27, 2925440), (28, 2820960), (30, 2632896), (32, 2468340), (35, 2256768), (36, 2194080), (40, 1974672), (42, 1880640), (45, 1755264), (48, 1645560), (54, 1462720), (56, 1410480), (60, 1316448), (63, 1253760), (64, 1234170), (70, 1128384), (72, 1097040), (80, 987336), (84, 940320), (90, 877632), (96, 822780), (105, 752256), (108, 731360), (112, 705240), (120, 658224), (126, 626880), (128, 617085), (135, 585088), (140, 564192), (144, 548520), (160, 493668), (168, 470160), (180, 438816), (189, 417920), (192, 411390), (210, 376128), (216, 365680), (224, 352620), (240, 329112), (252, 313440), (270, 292544), (280, 282096), (288, 274260), (315, 250752), (320, 246834), (336, 235080), (360, 219408), (378, 208960), (384, 205695), (420, 188064), (432, 182840), (448, 176310), (480, 164556), (504, 156720), (540, 146272), (560, 141048), (576, 137130), (630, 125376), (640, 123417), (653, 120960), (672, 117540), (720, 109704), (756, 104480), (840, 94032), (864, 91420), (896, 88155), (945, 83584), (960, 82278), (1008, 78360), (1080, 73136), (1120, 70524), (1152, 68565), (1260, 62688), (1306, 60480), (1344, 58770), (1440, 54852), (1512, 52240), (1680, 47016), (1728, 45710), (1890, 41792), (1920, 41139), (1959, 40320), (2016, 39180), (2160, 36568), (2240, 35262), (2520, 31344), (2612, 30240), (2688, 29385), (2880, 27426), (3024, 26120), (3265, 24192), (3360, 23508), (3456, 22855), (3780, 20896), (3918, 20160), (4032, 19590), (4320, 18284), (4480, 17631), (4571, 17280), (5040, 15672), (5224, 15120), (5760, 13713), (5877, 13440), (6048, 13060), (6530, 12096), (6720, 11754), (7560, 10448), (7836, 10080), (8064, 9795), (8640, 9142)]