20119680

素因数分解:

$2^7\times 3^2\times 5^1\times 7^1\times {\mathrm{499}}^1$

素因数の和:531

約数の個数: 192

約数和(自身を含む): 79560000

約数和(自身を除く): 59440320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 499, 504, 560, 576, 630, 640, 672, 720, 840, 896, 960, 998, 1008, 1120, 1152, 1260, 1344, 1440, 1497, 1680, 1920, 1996, 2016, 2240, 2495, 2520, 2688, 2880, 2994, 3360, 3493, 3992, 4032, 4480, 4491, 4990, 5040, 5760, 5988, 6720, 6986, 7485, 7984, 8064, 8982, 9980, 10080, 10479, 11976, 13440, 13972, 14970, 15968, 17465, 17964, 19960, 20160, 20958, 22455, 23952, 27944, 29940, 31437, 31936, 34930, 35928, 39920, 40320, 41916, 44910, 47904, 52395, 55888, 59880, 62874, 63872, 69860, 71856, 79840, 83832, 89820, 95808, 104790, 111776, 119760, 125748, 139720, 143712, 157185, 159680, 167664, 179640, 191616, 209580, 223552, 239520, 251496, 279440, 287424, 314370, 319360, 335328, 359280, 419160, 447104, 479040, 502992, 558880, 574848, 628740, 670656, 718560, 838320, 958080, 1005984, 1117760, 1257480, 1341312, 1437120, 1676640, 2011968, 2235520, 2514960, 2874240, 3353280, 4023936, 5029920, 6706560, 10059840, 20119680]

約数ペア:

[(1, 20119680), (2, 10059840), (3, 6706560), (4, 5029920), (5, 4023936), (6, 3353280), (7, 2874240), (8, 2514960), (9, 2235520), (10, 2011968), (12, 1676640), (14, 1437120), (15, 1341312), (16, 1257480), (18, 1117760), (20, 1005984), (21, 958080), (24, 838320), (28, 718560), (30, 670656), (32, 628740), (35, 574848), (36, 558880), (40, 502992), (42, 479040), (45, 447104), (48, 419160), (56, 359280), (60, 335328), (63, 319360), (64, 314370), (70, 287424), (72, 279440), (80, 251496), (84, 239520), (90, 223552), (96, 209580), (105, 191616), (112, 179640), (120, 167664), (126, 159680), (128, 157185), (140, 143712), (144, 139720), (160, 125748), (168, 119760), (180, 111776), (192, 104790), (210, 95808), (224, 89820), (240, 83832), (252, 79840), (280, 71856), (288, 69860), (315, 63872), (320, 62874), (336, 59880), (360, 55888), (384, 52395), (420, 47904), (448, 44910), (480, 41916), (499, 40320), (504, 39920), (560, 35928), (576, 34930), (630, 31936), (640, 31437), (672, 29940), (720, 27944), (840, 23952), (896, 22455), (960, 20958), (998, 20160), (1008, 19960), (1120, 17964), (1152, 17465), (1260, 15968), (1344, 14970), (1440, 13972), (1497, 13440), (1680, 11976), (1920, 10479), (1996, 10080), (2016, 9980), (2240, 8982), (2495, 8064), (2520, 7984), (2688, 7485), (2880, 6986), (2994, 6720), (3360, 5988), (3493, 5760), (3992, 5040), (4032, 4990), (4480, 4491)]