21077280

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1$

素因数の和:89

約数の個数: 384

約数和(自身を含む): 91445760

約数和(自身を除く): 70368480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 27, 28, 30, 32, 34, 35, 36, 40, 41, 42, 45, 48, 51, 54, 56, 60, 63, 68, 70, 72, 80, 82, 84, 85, 90, 96, 102, 105, 108, 112, 119, 120, 123, 126, 135, 136, 140, 144, 153, 160, 164, 168, 170, 180, 189, 204, 205, 210, 216, 224, 238, 240, 246, 252, 255, 270, 272, 280, 287, 288, 306, 315, 328, 336, 340, 357, 360, 369, 378, 408, 410, 420, 432, 459, 476, 480, 492, 504, 510, 540, 544, 560, 574, 595, 612, 615, 630, 656, 672, 680, 697, 714, 720, 738, 756, 765, 816, 820, 840, 861, 864, 918, 945, 952, 984, 1008, 1020, 1071, 1080, 1107, 1120, 1148, 1190, 1224, 1230, 1260, 1312, 1360, 1394, 1428, 1435, 1440, 1476, 1512, 1530, 1632, 1640, 1680, 1722, 1785, 1836, 1845, 1890, 1904, 1968, 2016, 2040, 2091, 2142, 2160, 2214, 2295, 2296, 2380, 2448, 2460, 2520, 2583, 2720, 2788, 2856, 2870, 2952, 3024, 3060, 3213, 3280, 3360, 3444, 3485, 3570, 3672, 3690, 3780, 3808, 3936, 4080, 4182, 4284, 4305, 4320, 4428, 4590, 4592, 4760, 4879, 4896, 4920, 5040, 5166, 5355, 5535, 5576, 5712, 5740, 5904, 6048, 6120, 6273, 6426, 6560, 6888, 6970, 7140, 7344, 7380, 7560, 7749, 8160, 8364, 8568, 8610, 8856, 9180, 9184, 9520, 9758, 9840, 10080, 10332, 10455, 10710, 11070, 11152, 11424, 11480, 11808, 12240, 12546, 12852, 12915, 13776, 13940, 14280, 14637, 14688, 14760, 15120, 15498, 16065, 16728, 17136, 17220, 17712, 18360, 18819, 19040, 19516, 19680, 20664, 20910, 21420, 22140, 22304, 22960, 24395, 24480, 25092, 25704, 25830, 27552, 27880, 28560, 29274, 29520, 30240, 30996, 31365, 32130, 33456, 34272, 34440, 35424, 36720, 37638, 38745, 39032, 41328, 41820, 42840, 43911, 44280, 45920, 48790, 50184, 51408, 51660, 55760, 57120, 58548, 59040, 61992, 62730, 64260, 66912, 68880, 73185, 73440, 75276, 77490, 78064, 82656, 83640, 85680, 87822, 88560, 94095, 97580, 100368, 102816, 103320, 111520, 117096, 123984, 125460, 128520, 131733, 137760, 146370, 150552, 154980, 156128, 167280, 171360, 175644, 177120, 188190, 195160, 200736, 206640, 219555, 234192, 247968, 250920, 257040, 263466, 292740, 301104, 309960, 334560, 351288, 376380, 390320, 413280, 439110, 468384, 501840, 514080, 526932, 585480, 602208, 619920, 658665, 702576, 752760, 780640, 878220, 1003680, 1053864, 1170960, 1239840, 1317330, 1405152, 1505520, 1756440, 2107728, 2341920, 2634660, 3011040, 3512880, 4215456, 5269320, 7025760, 10538640, 21077280]

約数ペア:

[(1, 21077280), (2, 10538640), (3, 7025760), (4, 5269320), (5, 4215456), (6, 3512880), (7, 3011040), (8, 2634660), (9, 2341920), (10, 2107728), (12, 1756440), (14, 1505520), (15, 1405152), (16, 1317330), (17, 1239840), (18, 1170960), (20, 1053864), (21, 1003680), (24, 878220), (27, 780640), (28, 752760), (30, 702576), (32, 658665), (34, 619920), (35, 602208), (36, 585480), (40, 526932), (41, 514080), (42, 501840), (45, 468384), (48, 439110), (51, 413280), (54, 390320), (56, 376380), (60, 351288), (63, 334560), (68, 309960), (70, 301104), (72, 292740), (80, 263466), (82, 257040), (84, 250920), (85, 247968), (90, 234192), (96, 219555), (102, 206640), (105, 200736), (108, 195160), (112, 188190), (119, 177120), (120, 175644), (123, 171360), (126, 167280), (135, 156128), (136, 154980), (140, 150552), (144, 146370), (153, 137760), (160, 131733), (164, 128520), (168, 125460), (170, 123984), (180, 117096), (189, 111520), (204, 103320), (205, 102816), (210, 100368), (216, 97580), (224, 94095), (238, 88560), (240, 87822), (246, 85680), (252, 83640), (255, 82656), (270, 78064), (272, 77490), (280, 75276), (287, 73440), (288, 73185), (306, 68880), (315, 66912), (328, 64260), (336, 62730), (340, 61992), (357, 59040), (360, 58548), (369, 57120), (378, 55760), (408, 51660), (410, 51408), (420, 50184), (432, 48790), (459, 45920), (476, 44280), (480, 43911), (492, 42840), (504, 41820), (510, 41328), (540, 39032), (544, 38745), (560, 37638), (574, 36720), (595, 35424), (612, 34440), (615, 34272), (630, 33456), (656, 32130), (672, 31365), (680, 30996), (697, 30240), (714, 29520), (720, 29274), (738, 28560), (756, 27880), (765, 27552), (816, 25830), (820, 25704), (840, 25092), (861, 24480), (864, 24395), (918, 22960), (945, 22304), (952, 22140), (984, 21420), (1008, 20910), (1020, 20664), (1071, 19680), (1080, 19516), (1107, 19040), (1120, 18819), (1148, 18360), (1190, 17712), (1224, 17220), (1230, 17136), (1260, 16728), (1312, 16065), (1360, 15498), (1394, 15120), (1428, 14760), (1435, 14688), (1440, 14637), (1476, 14280), (1512, 13940), (1530, 13776), (1632, 12915), (1640, 12852), (1680, 12546), (1722, 12240), (1785, 11808), (1836, 11480), (1845, 11424), (1890, 11152), (1904, 11070), (1968, 10710), (2016, 10455), (2040, 10332), (2091, 10080), (2142, 9840), (2160, 9758), (2214, 9520), (2295, 9184), (2296, 9180), (2380, 8856), (2448, 8610), (2460, 8568), (2520, 8364), (2583, 8160), (2720, 7749), (2788, 7560), (2856, 7380), (2870, 7344), (2952, 7140), (3024, 6970), (3060, 6888), (3213, 6560), (3280, 6426), (3360, 6273), (3444, 6120), (3485, 6048), (3570, 5904), (3672, 5740), (3690, 5712), (3780, 5576), (3808, 5535), (3936, 5355), (4080, 5166), (4182, 5040), (4284, 4920), (4305, 4896), (4320, 4879), (4428, 4760), (4590, 4592)]