20729280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1$

素因数の和:195

約数の個数: 224

約数和(自身を含む): 77833728

約数和(自身を除く): 57104448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 26, 30, 32, 33, 39, 40, 44, 48, 52, 55, 60, 64, 65, 66, 78, 80, 88, 96, 104, 110, 120, 130, 132, 143, 151, 156, 160, 165, 176, 192, 195, 208, 220, 240, 260, 264, 286, 302, 312, 320, 330, 352, 390, 416, 429, 440, 453, 480, 520, 528, 572, 604, 624, 660, 704, 715, 755, 780, 832, 858, 880, 906, 960, 1040, 1056, 1144, 1208, 1248, 1320, 1430, 1510, 1560, 1661, 1716, 1760, 1812, 1963, 2080, 2112, 2145, 2265, 2288, 2416, 2496, 2640, 2860, 3020, 3120, 3322, 3432, 3520, 3624, 3926, 4160, 4290, 4530, 4576, 4832, 4983, 5280, 5720, 5889, 6040, 6240, 6644, 6864, 7248, 7852, 8305, 8580, 9060, 9152, 9664, 9815, 9966, 10560, 11440, 11778, 12080, 12480, 13288, 13728, 14496, 15704, 16610, 17160, 18120, 19630, 19932, 21593, 22880, 23556, 24160, 24915, 26576, 27456, 28992, 29445, 31408, 33220, 34320, 36240, 39260, 39864, 43186, 45760, 47112, 48320, 49830, 53152, 58890, 62816, 64779, 66440, 68640, 72480, 78520, 79728, 86372, 94224, 99660, 106304, 107965, 117780, 125632, 129558, 132880, 137280, 144960, 157040, 159456, 172744, 188448, 199320, 215930, 235560, 259116, 265760, 314080, 318912, 323895, 345488, 376896, 398640, 431860, 471120, 518232, 531520, 628160, 647790, 690976, 797280, 863720, 942240, 1036464, 1295580, 1381952, 1594560, 1727440, 1884480, 2072928, 2591160, 3454880, 4145856, 5182320, 6909760, 10364640, 20729280]

約数ペア:

[(1, 20729280), (2, 10364640), (3, 6909760), (4, 5182320), (5, 4145856), (6, 3454880), (8, 2591160), (10, 2072928), (11, 1884480), (12, 1727440), (13, 1594560), (15, 1381952), (16, 1295580), (20, 1036464), (22, 942240), (24, 863720), (26, 797280), (30, 690976), (32, 647790), (33, 628160), (39, 531520), (40, 518232), (44, 471120), (48, 431860), (52, 398640), (55, 376896), (60, 345488), (64, 323895), (65, 318912), (66, 314080), (78, 265760), (80, 259116), (88, 235560), (96, 215930), (104, 199320), (110, 188448), (120, 172744), (130, 159456), (132, 157040), (143, 144960), (151, 137280), (156, 132880), (160, 129558), (165, 125632), (176, 117780), (192, 107965), (195, 106304), (208, 99660), (220, 94224), (240, 86372), (260, 79728), (264, 78520), (286, 72480), (302, 68640), (312, 66440), (320, 64779), (330, 62816), (352, 58890), (390, 53152), (416, 49830), (429, 48320), (440, 47112), (453, 45760), (480, 43186), (520, 39864), (528, 39260), (572, 36240), (604, 34320), (624, 33220), (660, 31408), (704, 29445), (715, 28992), (755, 27456), (780, 26576), (832, 24915), (858, 24160), (880, 23556), (906, 22880), (960, 21593), (1040, 19932), (1056, 19630), (1144, 18120), (1208, 17160), (1248, 16610), (1320, 15704), (1430, 14496), (1510, 13728), (1560, 13288), (1661, 12480), (1716, 12080), (1760, 11778), (1812, 11440), (1963, 10560), (2080, 9966), (2112, 9815), (2145, 9664), (2265, 9152), (2288, 9060), (2416, 8580), (2496, 8305), (2640, 7852), (2860, 7248), (3020, 6864), (3120, 6644), (3322, 6240), (3432, 6040), (3520, 5889), (3624, 5720), (3926, 5280), (4160, 4983), (4290, 4832), (4530, 4576)]