20408544

素因数分解:

$2^5\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:134

約数の個数: 192

約数和(自身を含む): 67737600

約数和(自身を除く): 47329056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 27, 32, 36, 39, 46, 48, 52, 54, 69, 72, 78, 79, 92, 96, 104, 108, 117, 138, 144, 156, 158, 184, 207, 208, 216, 234, 237, 276, 288, 299, 312, 316, 351, 368, 414, 416, 432, 468, 474, 552, 598, 621, 624, 632, 702, 711, 736, 828, 864, 897, 936, 948, 1027, 1104, 1196, 1242, 1248, 1264, 1404, 1422, 1656, 1794, 1817, 1872, 1896, 2054, 2133, 2208, 2392, 2484, 2528, 2691, 2808, 2844, 3081, 3312, 3588, 3634, 3744, 3792, 4108, 4266, 4784, 4968, 5382, 5451, 5616, 5688, 6162, 6624, 7176, 7268, 7584, 8073, 8216, 8532, 9243, 9568, 9936, 10764, 10902, 11232, 11376, 12324, 14352, 14536, 16146, 16353, 16432, 17064, 18486, 19872, 21528, 21804, 22752, 23621, 24648, 27729, 28704, 29072, 32292, 32706, 32864, 34128, 36972, 43056, 43608, 47242, 49059, 49296, 55458, 58144, 64584, 65412, 68256, 70863, 73944, 86112, 87216, 94484, 98118, 98592, 110916, 129168, 130824, 141726, 147888, 174432, 188968, 196236, 212589, 221832, 258336, 261648, 283452, 295776, 377936, 392472, 425178, 443664, 523296, 566904, 637767, 755872, 784944, 850356, 887328, 1133808, 1275534, 1569888, 1700712, 2267616, 2551068, 3401424, 5102136, 6802848, 10204272, 20408544]

約数ペア:

[(1, 20408544), (2, 10204272), (3, 6802848), (4, 5102136), (6, 3401424), (8, 2551068), (9, 2267616), (12, 1700712), (13, 1569888), (16, 1275534), (18, 1133808), (23, 887328), (24, 850356), (26, 784944), (27, 755872), (32, 637767), (36, 566904), (39, 523296), (46, 443664), (48, 425178), (52, 392472), (54, 377936), (69, 295776), (72, 283452), (78, 261648), (79, 258336), (92, 221832), (96, 212589), (104, 196236), (108, 188968), (117, 174432), (138, 147888), (144, 141726), (156, 130824), (158, 129168), (184, 110916), (207, 98592), (208, 98118), (216, 94484), (234, 87216), (237, 86112), (276, 73944), (288, 70863), (299, 68256), (312, 65412), (316, 64584), (351, 58144), (368, 55458), (414, 49296), (416, 49059), (432, 47242), (468, 43608), (474, 43056), (552, 36972), (598, 34128), (621, 32864), (624, 32706), (632, 32292), (702, 29072), (711, 28704), (736, 27729), (828, 24648), (864, 23621), (897, 22752), (936, 21804), (948, 21528), (1027, 19872), (1104, 18486), (1196, 17064), (1242, 16432), (1248, 16353), (1264, 16146), (1404, 14536), (1422, 14352), (1656, 12324), (1794, 11376), (1817, 11232), (1872, 10902), (1896, 10764), (2054, 9936), (2133, 9568), (2208, 9243), (2392, 8532), (2484, 8216), (2528, 8073), (2691, 7584), (2808, 7268), (2844, 7176), (3081, 6624), (3312, 6162), (3588, 5688), (3634, 5616), (3744, 5451), (3792, 5382), (4108, 4968), (4266, 4784)]