81894240

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 240

約数和(自身を含む): 296382240

約数和(自身を除く): 214488000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 71, 72, 80, 81, 89, 90, 96, 108, 120, 135, 142, 144, 160, 162, 178, 180, 213, 216, 240, 267, 270, 284, 288, 324, 355, 356, 360, 405, 426, 432, 445, 480, 534, 540, 568, 639, 648, 710, 712, 720, 801, 810, 852, 864, 890, 1065, 1068, 1080, 1136, 1278, 1296, 1335, 1420, 1424, 1440, 1602, 1620, 1704, 1780, 1917, 2130, 2136, 2160, 2272, 2403, 2556, 2592, 2670, 2840, 2848, 3195, 3204, 3240, 3408, 3560, 3834, 4005, 4260, 4272, 4320, 4806, 5112, 5340, 5680, 5751, 6319, 6390, 6408, 6480, 6816, 7120, 7209, 7668, 8010, 8520, 8544, 9585, 9612, 10224, 10680, 11360, 11502, 12015, 12638, 12780, 12816, 12960, 14240, 14418, 15336, 16020, 17040, 18957, 19170, 19224, 20448, 21360, 23004, 24030, 25276, 25560, 25632, 28755, 28836, 30672, 31595, 32040, 34080, 36045, 37914, 38340, 38448, 42720, 46008, 48060, 50552, 51120, 56871, 57510, 57672, 61344, 63190, 64080, 72090, 75828, 76680, 76896, 92016, 94785, 96120, 101104, 102240, 113742, 115020, 115344, 126380, 128160, 144180, 151656, 153360, 170613, 184032, 189570, 192240, 202208, 227484, 230040, 230688, 252760, 284355, 288360, 303312, 306720, 341226, 379140, 384480, 454968, 460080, 505520, 511839, 568710, 576720, 606624, 682452, 758280, 853065, 909936, 920160, 1011040, 1023678, 1137420, 1153440, 1364904, 1516560, 1706130, 1819872, 2047356, 2274840, 2559195, 2729808, 3033120, 3412260, 4094712, 4549680, 5118390, 5459616, 6824520, 8189424, 9099360, 10236780, 13649040, 16378848, 20473560, 27298080, 40947120, 81894240]

約数ペア:

[(1, 81894240), (2, 40947120), (3, 27298080), (4, 20473560), (5, 16378848), (6, 13649040), (8, 10236780), (9, 9099360), (10, 8189424), (12, 6824520), (15, 5459616), (16, 5118390), (18, 4549680), (20, 4094712), (24, 3412260), (27, 3033120), (30, 2729808), (32, 2559195), (36, 2274840), (40, 2047356), (45, 1819872), (48, 1706130), (54, 1516560), (60, 1364904), (71, 1153440), (72, 1137420), (80, 1023678), (81, 1011040), (89, 920160), (90, 909936), (96, 853065), (108, 758280), (120, 682452), (135, 606624), (142, 576720), (144, 568710), (160, 511839), (162, 505520), (178, 460080), (180, 454968), (213, 384480), (216, 379140), (240, 341226), (267, 306720), (270, 303312), (284, 288360), (288, 284355), (324, 252760), (355, 230688), (356, 230040), (360, 227484), (405, 202208), (426, 192240), (432, 189570), (445, 184032), (480, 170613), (534, 153360), (540, 151656), (568, 144180), (639, 128160), (648, 126380), (710, 115344), (712, 115020), (720, 113742), (801, 102240), (810, 101104), (852, 96120), (864, 94785), (890, 92016), (1065, 76896), (1068, 76680), (1080, 75828), (1136, 72090), (1278, 64080), (1296, 63190), (1335, 61344), (1420, 57672), (1424, 57510), (1440, 56871), (1602, 51120), (1620, 50552), (1704, 48060), (1780, 46008), (1917, 42720), (2130, 38448), (2136, 38340), (2160, 37914), (2272, 36045), (2403, 34080), (2556, 32040), (2592, 31595), (2670, 30672), (2840, 28836), (2848, 28755), (3195, 25632), (3204, 25560), (3240, 25276), (3408, 24030), (3560, 23004), (3834, 21360), (4005, 20448), (4260, 19224), (4272, 19170), (4320, 18957), (4806, 17040), (5112, 16020), (5340, 15336), (5680, 14418), (5751, 14240), (6319, 12960), (6390, 12816), (6408, 12780), (6480, 12638), (6816, 12015), (7120, 11502), (7209, 11360), (7668, 10680), (8010, 10224), (8520, 9612), (8544, 9585)]