20797920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:146

約数の個数: 288

約数和(自身を含む): 84206304

約数和(自身を除く): 63408384

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 30, 32, 33, 36, 39, 40, 44, 45, 48, 52, 55, 60, 65, 66, 72, 78, 80, 88, 90, 96, 99, 101, 104, 110, 117, 120, 130, 132, 143, 144, 156, 160, 165, 176, 180, 195, 198, 202, 208, 220, 234, 240, 260, 264, 286, 288, 303, 312, 330, 352, 360, 390, 396, 404, 416, 429, 440, 468, 480, 495, 505, 520, 528, 572, 585, 606, 624, 660, 715, 720, 780, 792, 808, 858, 880, 909, 936, 990, 1010, 1040, 1056, 1111, 1144, 1170, 1212, 1248, 1287, 1313, 1320, 1430, 1440, 1515, 1560, 1584, 1616, 1716, 1760, 1818, 1872, 1980, 2020, 2080, 2145, 2222, 2288, 2340, 2424, 2574, 2626, 2640, 2860, 3030, 3120, 3168, 3232, 3333, 3432, 3636, 3744, 3939, 3960, 4040, 4290, 4444, 4545, 4576, 4680, 4848, 5148, 5252, 5280, 5555, 5720, 6060, 6240, 6435, 6565, 6666, 6864, 7272, 7878, 7920, 8080, 8580, 8888, 9090, 9360, 9696, 9999, 10296, 10504, 11110, 11440, 11817, 12120, 12870, 13130, 13332, 13728, 14443, 14544, 15756, 15840, 16160, 16665, 17160, 17776, 18180, 18720, 19695, 19998, 20592, 21008, 22220, 22880, 23634, 24240, 25740, 26260, 26664, 28886, 29088, 31512, 33330, 34320, 35552, 36360, 39390, 39996, 41184, 42016, 43329, 44440, 47268, 48480, 49995, 51480, 52520, 53328, 57772, 59085, 63024, 66660, 68640, 72215, 72720, 78780, 79992, 86658, 88880, 94536, 99990, 102960, 105040, 106656, 115544, 118170, 126048, 129987, 133320, 144430, 145440, 157560, 159984, 173316, 177760, 189072, 199980, 205920, 210080, 216645, 231088, 236340, 259974, 266640, 288860, 315120, 319968, 346632, 378144, 399960, 433290, 462176, 472680, 519948, 533280, 577720, 630240, 649935, 693264, 799920, 866580, 945360, 1039896, 1155440, 1299870, 1386528, 1599840, 1733160, 1890720, 2079792, 2310880, 2599740, 3466320, 4159584, 5199480, 6932640, 10398960, 20797920]

約数ペア:

[(1, 20797920), (2, 10398960), (3, 6932640), (4, 5199480), (5, 4159584), (6, 3466320), (8, 2599740), (9, 2310880), (10, 2079792), (11, 1890720), (12, 1733160), (13, 1599840), (15, 1386528), (16, 1299870), (18, 1155440), (20, 1039896), (22, 945360), (24, 866580), (26, 799920), (30, 693264), (32, 649935), (33, 630240), (36, 577720), (39, 533280), (40, 519948), (44, 472680), (45, 462176), (48, 433290), (52, 399960), (55, 378144), (60, 346632), (65, 319968), (66, 315120), (72, 288860), (78, 266640), (80, 259974), (88, 236340), (90, 231088), (96, 216645), (99, 210080), (101, 205920), (104, 199980), (110, 189072), (117, 177760), (120, 173316), (130, 159984), (132, 157560), (143, 145440), (144, 144430), (156, 133320), (160, 129987), (165, 126048), (176, 118170), (180, 115544), (195, 106656), (198, 105040), (202, 102960), (208, 99990), (220, 94536), (234, 88880), (240, 86658), (260, 79992), (264, 78780), (286, 72720), (288, 72215), (303, 68640), (312, 66660), (330, 63024), (352, 59085), (360, 57772), (390, 53328), (396, 52520), (404, 51480), (416, 49995), (429, 48480), (440, 47268), (468, 44440), (480, 43329), (495, 42016), (505, 41184), (520, 39996), (528, 39390), (572, 36360), (585, 35552), (606, 34320), (624, 33330), (660, 31512), (715, 29088), (720, 28886), (780, 26664), (792, 26260), (808, 25740), (858, 24240), (880, 23634), (909, 22880), (936, 22220), (990, 21008), (1010, 20592), (1040, 19998), (1056, 19695), (1111, 18720), (1144, 18180), (1170, 17776), (1212, 17160), (1248, 16665), (1287, 16160), (1313, 15840), (1320, 15756), (1430, 14544), (1440, 14443), (1515, 13728), (1560, 13332), (1584, 13130), (1616, 12870), (1716, 12120), (1760, 11817), (1818, 11440), (1872, 11110), (1980, 10504), (2020, 10296), (2080, 9999), (2145, 9696), (2222, 9360), (2288, 9090), (2340, 8888), (2424, 8580), (2574, 8080), (2626, 7920), (2640, 7878), (2860, 7272), (3030, 6864), (3120, 6666), (3168, 6565), (3232, 6435), (3333, 6240), (3432, 6060), (3636, 5720), (3744, 5555), (3939, 5280), (3960, 5252), (4040, 5148), (4290, 4848), (4444, 4680), (4545, 4576)]