21589920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:108

約数の個数: 288

約数和(自身を含む): 84913920

約数和(自身を除く): 63324000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 29, 30, 32, 33, 36, 40, 44, 45, 47, 48, 55, 58, 60, 66, 72, 80, 87, 88, 90, 94, 96, 99, 110, 116, 120, 132, 141, 144, 145, 160, 165, 174, 176, 180, 188, 198, 220, 232, 235, 240, 261, 264, 282, 288, 290, 319, 330, 348, 352, 360, 376, 396, 423, 435, 440, 464, 470, 480, 495, 517, 522, 528, 564, 580, 638, 660, 696, 705, 720, 752, 792, 846, 870, 880, 928, 940, 957, 990, 1034, 1044, 1056, 1128, 1160, 1276, 1305, 1320, 1363, 1392, 1410, 1440, 1504, 1551, 1584, 1595, 1692, 1740, 1760, 1880, 1914, 1980, 2068, 2088, 2115, 2256, 2320, 2552, 2585, 2610, 2640, 2726, 2784, 2820, 2871, 3102, 3168, 3190, 3384, 3480, 3760, 3828, 3960, 4089, 4136, 4176, 4230, 4512, 4640, 4653, 4785, 5104, 5170, 5220, 5280, 5452, 5640, 5742, 6204, 6380, 6768, 6815, 6960, 7520, 7656, 7755, 7920, 8178, 8272, 8352, 8460, 9306, 9570, 10208, 10340, 10440, 10904, 11280, 11484, 12267, 12408, 12760, 13536, 13630, 13920, 14355, 14993, 15312, 15510, 15840, 16356, 16544, 16920, 18612, 19140, 20445, 20680, 20880, 21808, 22560, 22968, 23265, 24534, 24816, 25520, 27260, 28710, 29986, 30624, 31020, 32712, 33840, 37224, 38280, 40890, 41360, 41760, 43616, 44979, 45936, 46530, 49068, 49632, 51040, 54520, 57420, 59972, 61335, 62040, 65424, 67680, 74448, 74965, 76560, 81780, 82720, 89958, 91872, 93060, 98136, 109040, 114840, 119944, 122670, 124080, 130848, 134937, 148896, 149930, 153120, 163560, 179916, 186120, 196272, 218080, 224895, 229680, 239888, 245340, 248160, 269874, 299860, 327120, 359832, 372240, 392544, 449790, 459360, 479776, 490680, 539748, 599720, 654240, 674685, 719664, 744480, 899580, 981360, 1079496, 1199440, 1349370, 1439328, 1799160, 1962720, 2158992, 2398880, 2698740, 3598320, 4317984, 5397480, 7196640, 10794960, 21589920]

約数ペア:

[(1, 21589920), (2, 10794960), (3, 7196640), (4, 5397480), (5, 4317984), (6, 3598320), (8, 2698740), (9, 2398880), (10, 2158992), (11, 1962720), (12, 1799160), (15, 1439328), (16, 1349370), (18, 1199440), (20, 1079496), (22, 981360), (24, 899580), (29, 744480), (30, 719664), (32, 674685), (33, 654240), (36, 599720), (40, 539748), (44, 490680), (45, 479776), (47, 459360), (48, 449790), (55, 392544), (58, 372240), (60, 359832), (66, 327120), (72, 299860), (80, 269874), (87, 248160), (88, 245340), (90, 239888), (94, 229680), (96, 224895), (99, 218080), (110, 196272), (116, 186120), (120, 179916), (132, 163560), (141, 153120), (144, 149930), (145, 148896), (160, 134937), (165, 130848), (174, 124080), (176, 122670), (180, 119944), (188, 114840), (198, 109040), (220, 98136), (232, 93060), (235, 91872), (240, 89958), (261, 82720), (264, 81780), (282, 76560), (288, 74965), (290, 74448), (319, 67680), (330, 65424), (348, 62040), (352, 61335), (360, 59972), (376, 57420), (396, 54520), (423, 51040), (435, 49632), (440, 49068), (464, 46530), (470, 45936), (480, 44979), (495, 43616), (517, 41760), (522, 41360), (528, 40890), (564, 38280), (580, 37224), (638, 33840), (660, 32712), (696, 31020), (705, 30624), (720, 29986), (752, 28710), (792, 27260), (846, 25520), (870, 24816), (880, 24534), (928, 23265), (940, 22968), (957, 22560), (990, 21808), (1034, 20880), (1044, 20680), (1056, 20445), (1128, 19140), (1160, 18612), (1276, 16920), (1305, 16544), (1320, 16356), (1363, 15840), (1392, 15510), (1410, 15312), (1440, 14993), (1504, 14355), (1551, 13920), (1584, 13630), (1595, 13536), (1692, 12760), (1740, 12408), (1760, 12267), (1880, 11484), (1914, 11280), (1980, 10904), (2068, 10440), (2088, 10340), (2115, 10208), (2256, 9570), (2320, 9306), (2552, 8460), (2585, 8352), (2610, 8272), (2640, 8178), (2726, 7920), (2784, 7755), (2820, 7656), (2871, 7520), (3102, 6960), (3168, 6815), (3190, 6768), (3384, 6380), (3480, 6204), (3760, 5742), (3828, 5640), (3960, 5452), (4089, 5280), (4136, 5220), (4176, 5170), (4230, 5104), (4512, 4785), (4640, 4653)]