21490560

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:86

約数の個数: 384

約数和(自身を含む): 93562560

約数和(自身を除く): 72072000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 32, 35, 36, 39, 40, 41, 42, 45, 48, 52, 56, 60, 63, 64, 65, 70, 72, 78, 80, 82, 84, 90, 91, 96, 104, 105, 112, 117, 120, 123, 126, 128, 130, 140, 144, 156, 160, 164, 168, 180, 182, 192, 195, 205, 208, 210, 224, 234, 240, 246, 252, 260, 273, 280, 287, 288, 312, 315, 320, 328, 336, 360, 364, 369, 384, 390, 410, 416, 420, 448, 455, 468, 480, 492, 504, 520, 533, 546, 560, 574, 576, 585, 615, 624, 630, 640, 656, 672, 720, 728, 738, 780, 819, 820, 832, 840, 861, 896, 910, 936, 960, 984, 1008, 1040, 1066, 1092, 1120, 1148, 1152, 1170, 1230, 1248, 1260, 1312, 1344, 1365, 1435, 1440, 1456, 1476, 1560, 1599, 1638, 1640, 1664, 1680, 1722, 1820, 1845, 1872, 1920, 1968, 2016, 2080, 2132, 2184, 2240, 2296, 2340, 2460, 2496, 2520, 2583, 2624, 2665, 2688, 2730, 2870, 2880, 2912, 2952, 3120, 3198, 3276, 3280, 3360, 3444, 3640, 3690, 3731, 3744, 3936, 4032, 4095, 4160, 4264, 4305, 4368, 4480, 4592, 4680, 4797, 4920, 4992, 5040, 5166, 5248, 5330, 5460, 5740, 5760, 5824, 5904, 6240, 6396, 6552, 6560, 6720, 6888, 7280, 7380, 7462, 7488, 7872, 7995, 8064, 8190, 8320, 8528, 8610, 8736, 9184, 9360, 9594, 9840, 10080, 10332, 10660, 10920, 11193, 11480, 11648, 11808, 12480, 12792, 12915, 13104, 13120, 13440, 13776, 14560, 14760, 14924, 14976, 15744, 15990, 16380, 17056, 17220, 17472, 18368, 18655, 18720, 19188, 19680, 20160, 20664, 21320, 21840, 22386, 22960, 23616, 23985, 24960, 25584, 25830, 26208, 26240, 27552, 29120, 29520, 29848, 31980, 32760, 33579, 34112, 34440, 34944, 36736, 37310, 37440, 38376, 39360, 40320, 41328, 42640, 43680, 44772, 45920, 47232, 47970, 51168, 51660, 52416, 55104, 55965, 58240, 59040, 59696, 63960, 65520, 67158, 68224, 68880, 74620, 74880, 76752, 78720, 82656, 85280, 87360, 89544, 91840, 95940, 102336, 103320, 104832, 110208, 111930, 118080, 119392, 127920, 131040, 134316, 137760, 149240, 153504, 165312, 167895, 170560, 174720, 179088, 183680, 191880, 204672, 206640, 223860, 236160, 238784, 255840, 262080, 268632, 275520, 298480, 307008, 330624, 335790, 341120, 358176, 383760, 413280, 447720, 477568, 511680, 524160, 537264, 551040, 596960, 614016, 671580, 716352, 767520, 826560, 895440, 1023360, 1074528, 1193920, 1343160, 1432704, 1535040, 1653120, 1790880, 2149056, 2387840, 2686320, 3070080, 3581760, 4298112, 5372640, 7163520, 10745280, 21490560]

約数ペア:

[(1, 21490560), (2, 10745280), (3, 7163520), (4, 5372640), (5, 4298112), (6, 3581760), (7, 3070080), (8, 2686320), (9, 2387840), (10, 2149056), (12, 1790880), (13, 1653120), (14, 1535040), (15, 1432704), (16, 1343160), (18, 1193920), (20, 1074528), (21, 1023360), (24, 895440), (26, 826560), (28, 767520), (30, 716352), (32, 671580), (35, 614016), (36, 596960), (39, 551040), (40, 537264), (41, 524160), (42, 511680), (45, 477568), (48, 447720), (52, 413280), (56, 383760), (60, 358176), (63, 341120), (64, 335790), (65, 330624), (70, 307008), (72, 298480), (78, 275520), (80, 268632), (82, 262080), (84, 255840), (90, 238784), (91, 236160), (96, 223860), (104, 206640), (105, 204672), (112, 191880), (117, 183680), (120, 179088), (123, 174720), (126, 170560), (128, 167895), (130, 165312), (140, 153504), (144, 149240), (156, 137760), (160, 134316), (164, 131040), (168, 127920), (180, 119392), (182, 118080), (192, 111930), (195, 110208), (205, 104832), (208, 103320), (210, 102336), (224, 95940), (234, 91840), (240, 89544), (246, 87360), (252, 85280), (260, 82656), (273, 78720), (280, 76752), (287, 74880), (288, 74620), (312, 68880), (315, 68224), (320, 67158), (328, 65520), (336, 63960), (360, 59696), (364, 59040), (369, 58240), (384, 55965), (390, 55104), (410, 52416), (416, 51660), (420, 51168), (448, 47970), (455, 47232), (468, 45920), (480, 44772), (492, 43680), (504, 42640), (520, 41328), (533, 40320), (546, 39360), (560, 38376), (574, 37440), (576, 37310), (585, 36736), (615, 34944), (624, 34440), (630, 34112), (640, 33579), (656, 32760), (672, 31980), (720, 29848), (728, 29520), (738, 29120), (780, 27552), (819, 26240), (820, 26208), (832, 25830), (840, 25584), (861, 24960), (896, 23985), (910, 23616), (936, 22960), (960, 22386), (984, 21840), (1008, 21320), (1040, 20664), (1066, 20160), (1092, 19680), (1120, 19188), (1148, 18720), (1152, 18655), (1170, 18368), (1230, 17472), (1248, 17220), (1260, 17056), (1312, 16380), (1344, 15990), (1365, 15744), (1435, 14976), (1440, 14924), (1456, 14760), (1476, 14560), (1560, 13776), (1599, 13440), (1638, 13120), (1640, 13104), (1664, 12915), (1680, 12792), (1722, 12480), (1820, 11808), (1845, 11648), (1872, 11480), (1920, 11193), (1968, 10920), (2016, 10660), (2080, 10332), (2132, 10080), (2184, 9840), (2240, 9594), (2296, 9360), (2340, 9184), (2460, 8736), (2496, 8610), (2520, 8528), (2583, 8320), (2624, 8190), (2665, 8064), (2688, 7995), (2730, 7872), (2870, 7488), (2880, 7462), (2912, 7380), (2952, 7280), (3120, 6888), (3198, 6720), (3276, 6560), (3280, 6552), (3360, 6396), (3444, 6240), (3640, 5904), (3690, 5824), (3731, 5760), (3744, 5740), (3936, 5460), (4032, 5330), (4095, 5248), (4160, 5166), (4264, 5040), (4305, 4992), (4368, 4920), (4480, 4797), (4592, 4680)]