81688320

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{1013}}^1$

素因数の和:1047

約数の個数: 216

約数和(自身を含む): 323328096

約数和(自身を除く): 241639776

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1013, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2026, 2240, 2304, 2520, 2688, 2880, 3039, 3360, 3840, 4032, 4052, 4480, 5040, 5065, 5376, 5760, 6078, 6720, 7091, 8064, 8104, 8960, 9117, 10080, 10130, 11520, 12156, 13440, 14182, 15195, 16128, 16208, 18234, 20160, 20260, 21273, 24312, 26880, 28364, 30390, 32416, 35455, 36468, 40320, 40520, 42546, 45585, 48624, 56728, 60780, 63819, 64832, 70910, 72936, 80640, 81040, 85092, 91170, 97248, 106365, 113456, 121560, 127638, 129664, 141820, 145872, 162080, 170184, 182340, 194496, 212730, 226912, 243120, 255276, 259328, 283640, 291744, 319095, 324160, 340368, 364680, 388992, 425460, 453824, 486240, 510552, 567280, 583488, 638190, 648320, 680736, 729360, 777984, 850920, 907648, 972480, 1021104, 1134560, 1166976, 1276380, 1296640, 1361472, 1458720, 1701840, 1815296, 1944960, 2042208, 2269120, 2333952, 2552760, 2722944, 2917440, 3403680, 3889920, 4084416, 4538240, 5105520, 5445888, 5834880, 6807360, 8168832, 9076480, 10211040, 11669760, 13614720, 16337664, 20422080, 27229440, 40844160, 81688320]

約数ペア:

[(1, 81688320), (2, 40844160), (3, 27229440), (4, 20422080), (5, 16337664), (6, 13614720), (7, 11669760), (8, 10211040), (9, 9076480), (10, 8168832), (12, 6807360), (14, 5834880), (15, 5445888), (16, 5105520), (18, 4538240), (20, 4084416), (21, 3889920), (24, 3403680), (28, 2917440), (30, 2722944), (32, 2552760), (35, 2333952), (36, 2269120), (40, 2042208), (42, 1944960), (45, 1815296), (48, 1701840), (56, 1458720), (60, 1361472), (63, 1296640), (64, 1276380), (70, 1166976), (72, 1134560), (80, 1021104), (84, 972480), (90, 907648), (96, 850920), (105, 777984), (112, 729360), (120, 680736), (126, 648320), (128, 638190), (140, 583488), (144, 567280), (160, 510552), (168, 486240), (180, 453824), (192, 425460), (210, 388992), (224, 364680), (240, 340368), (252, 324160), (256, 319095), (280, 291744), (288, 283640), (315, 259328), (320, 255276), (336, 243120), (360, 226912), (384, 212730), (420, 194496), (448, 182340), (480, 170184), (504, 162080), (560, 145872), (576, 141820), (630, 129664), (640, 127638), (672, 121560), (720, 113456), (768, 106365), (840, 97248), (896, 91170), (960, 85092), (1008, 81040), (1013, 80640), (1120, 72936), (1152, 70910), (1260, 64832), (1280, 63819), (1344, 60780), (1440, 56728), (1680, 48624), (1792, 45585), (1920, 42546), (2016, 40520), (2026, 40320), (2240, 36468), (2304, 35455), (2520, 32416), (2688, 30390), (2880, 28364), (3039, 26880), (3360, 24312), (3840, 21273), (4032, 20260), (4052, 20160), (4480, 18234), (5040, 16208), (5065, 16128), (5376, 15195), (5760, 14182), (6078, 13440), (6720, 12156), (7091, 11520), (8064, 10130), (8104, 10080), (8960, 9117)]