20979865728

素因数分解:

$2^7\times 3^5\times {\mathrm{643}}^1\times {\mathrm{1049}}^1$

素因数の和:1721

約数の個数: 192

約数和(自身を含む): 62764884000

約数和(自身を除く): 41785018272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 243, 288, 324, 384, 432, 486, 576, 643, 648, 864, 972, 1049, 1152, 1286, 1296, 1728, 1929, 1944, 2098, 2572, 2592, 3147, 3456, 3858, 3888, 4196, 5144, 5184, 5787, 6294, 7716, 7776, 8392, 9441, 10288, 10368, 11574, 12588, 15432, 15552, 16784, 17361, 18882, 20576, 23148, 25176, 28323, 30864, 31104, 33568, 34722, 37764, 41152, 46296, 50352, 52083, 56646, 61728, 67136, 69444, 75528, 82304, 84969, 92592, 100704, 104166, 113292, 123456, 134272, 138888, 151056, 156249, 169938, 185184, 201408, 208332, 226584, 246912, 254907, 277776, 302112, 312498, 339876, 370368, 402816, 416664, 453168, 509814, 555552, 604224, 624996, 674507, 679752, 740736, 833328, 906336, 1019628, 1111104, 1208448, 1249992, 1349014, 1359504, 1666656, 1812672, 2023521, 2039256, 2222208, 2499984, 2698028, 2719008, 3333312, 3625344, 4047042, 4078512, 4999968, 5396056, 5438016, 6070563, 6666624, 8094084, 8157024, 9999936, 10792112, 10876032, 12141126, 16188168, 16314048, 18211689, 19999872, 21584224, 24282252, 32376336, 32628096, 36423378, 43168448, 48564504, 54635067, 64752672, 72846756, 86336896, 97129008, 109270134, 129505344, 145693512, 163905201, 194258016, 218540268, 259010688, 291387024, 327810402, 388516032, 437080536, 582774048, 655620804, 777032064, 874161072, 1165548096, 1311241608, 1748322144, 2331096192, 2622483216, 3496644288, 5244966432, 6993288576, 10489932864, 20979865728]

約数ペア:

[(1, 20979865728), (2, 10489932864), (3, 6993288576), (4, 5244966432), (6, 3496644288), (8, 2622483216), (9, 2331096192), (12, 1748322144), (16, 1311241608), (18, 1165548096), (24, 874161072), (27, 777032064), (32, 655620804), (36, 582774048), (48, 437080536), (54, 388516032), (64, 327810402), (72, 291387024), (81, 259010688), (96, 218540268), (108, 194258016), (128, 163905201), (144, 145693512), (162, 129505344), (192, 109270134), (216, 97129008), (243, 86336896), (288, 72846756), (324, 64752672), (384, 54635067), (432, 48564504), (486, 43168448), (576, 36423378), (643, 32628096), (648, 32376336), (864, 24282252), (972, 21584224), (1049, 19999872), (1152, 18211689), (1286, 16314048), (1296, 16188168), (1728, 12141126), (1929, 10876032), (1944, 10792112), (2098, 9999936), (2572, 8157024), (2592, 8094084), (3147, 6666624), (3456, 6070563), (3858, 5438016), (3888, 5396056), (4196, 4999968), (5144, 4078512), (5184, 4047042), (5787, 3625344), (6294, 3333312), (7716, 2719008), (7776, 2698028), (8392, 2499984), (9441, 2222208), (10288, 2039256), (10368, 2023521), (11574, 1812672), (12588, 1666656), (15432, 1359504), (15552, 1349014), (16784, 1249992), (17361, 1208448), (18882, 1111104), (20576, 1019628), (23148, 906336), (25176, 833328), (28323, 740736), (30864, 679752), (31104, 674507), (33568, 624996), (34722, 604224), (37764, 555552), (41152, 509814), (46296, 453168), (50352, 416664), (52083, 402816), (56646, 370368), (61728, 339876), (67136, 312498), (69444, 302112), (75528, 277776), (82304, 254907), (84969, 246912), (92592, 226584), (100704, 208332), (104166, 201408), (113292, 185184), (123456, 169938), (134272, 156249), (138888, 151056)]