28013760

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 168

約数和(自身を含む): 98426016

約数和(自身を除く): 70412256

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 137, 142, 144, 160, 180, 192, 213, 240, 274, 284, 288, 320, 355, 360, 411, 426, 480, 548, 568, 576, 639, 685, 710, 720, 822, 852, 960, 1065, 1096, 1136, 1233, 1278, 1370, 1420, 1440, 1644, 1704, 2055, 2130, 2192, 2272, 2466, 2556, 2740, 2840, 2880, 3195, 3288, 3408, 4110, 4260, 4384, 4544, 4932, 5112, 5480, 5680, 6165, 6390, 6576, 6816, 8220, 8520, 8768, 9727, 9864, 10224, 10960, 11360, 12330, 12780, 13152, 13632, 16440, 17040, 19454, 19728, 20448, 21920, 22720, 24660, 25560, 26304, 29181, 32880, 34080, 38908, 39456, 40896, 43840, 48635, 49320, 51120, 58362, 65760, 68160, 77816, 78912, 87543, 97270, 98640, 102240, 116724, 131520, 145905, 155632, 175086, 194540, 197280, 204480, 233448, 291810, 311264, 350172, 389080, 394560, 437715, 466896, 583620, 622528, 700344, 778160, 875430, 933792, 1167240, 1400688, 1556320, 1750860, 1867584, 2334480, 2801376, 3112640, 3501720, 4668960, 5602752, 7003440, 9337920, 14006880, 28013760]

約数ペア:

[(1, 28013760), (2, 14006880), (3, 9337920), (4, 7003440), (5, 5602752), (6, 4668960), (8, 3501720), (9, 3112640), (10, 2801376), (12, 2334480), (15, 1867584), (16, 1750860), (18, 1556320), (20, 1400688), (24, 1167240), (30, 933792), (32, 875430), (36, 778160), (40, 700344), (45, 622528), (48, 583620), (60, 466896), (64, 437715), (71, 394560), (72, 389080), (80, 350172), (90, 311264), (96, 291810), (120, 233448), (137, 204480), (142, 197280), (144, 194540), (160, 175086), (180, 155632), (192, 145905), (213, 131520), (240, 116724), (274, 102240), (284, 98640), (288, 97270), (320, 87543), (355, 78912), (360, 77816), (411, 68160), (426, 65760), (480, 58362), (548, 51120), (568, 49320), (576, 48635), (639, 43840), (685, 40896), (710, 39456), (720, 38908), (822, 34080), (852, 32880), (960, 29181), (1065, 26304), (1096, 25560), (1136, 24660), (1233, 22720), (1278, 21920), (1370, 20448), (1420, 19728), (1440, 19454), (1644, 17040), (1704, 16440), (2055, 13632), (2130, 13152), (2192, 12780), (2272, 12330), (2466, 11360), (2556, 10960), (2740, 10224), (2840, 9864), (2880, 9727), (3195, 8768), (3288, 8520), (3408, 8220), (4110, 6816), (4260, 6576), (4384, 6390), (4544, 6165), (4932, 5680), (5112, 5480)]