20389824

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:427

約数の個数: 168

約数和(自身を含む): 72115680

約数和(自身を除く): 51725856

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 52, 56, 63, 64, 72, 78, 84, 91, 96, 104, 112, 117, 126, 144, 156, 168, 182, 192, 208, 224, 234, 252, 273, 288, 312, 336, 364, 389, 416, 448, 468, 504, 546, 576, 624, 672, 728, 778, 819, 832, 936, 1008, 1092, 1167, 1248, 1344, 1456, 1556, 1638, 1872, 2016, 2184, 2334, 2496, 2723, 2912, 3112, 3276, 3501, 3744, 4032, 4368, 4668, 5057, 5446, 5824, 6224, 6552, 7002, 7488, 8169, 8736, 9336, 10114, 10892, 12448, 13104, 14004, 15171, 16338, 17472, 18672, 20228, 21784, 24507, 24896, 26208, 28008, 30342, 32676, 35399, 37344, 40456, 43568, 45513, 49014, 52416, 56016, 60684, 65352, 70798, 74688, 80912, 87136, 91026, 98028, 106197, 112032, 121368, 130704, 141596, 161824, 174272, 182052, 196056, 212394, 224064, 242736, 261408, 283192, 318591, 323648, 364104, 392112, 424788, 485472, 522816, 566384, 637182, 728208, 784224, 849576, 970944, 1132768, 1274364, 1456416, 1568448, 1699152, 2265536, 2548728, 2912832, 3398304, 5097456, 6796608, 10194912, 20389824]

約数ペア:

[(1, 20389824), (2, 10194912), (3, 6796608), (4, 5097456), (6, 3398304), (7, 2912832), (8, 2548728), (9, 2265536), (12, 1699152), (13, 1568448), (14, 1456416), (16, 1274364), (18, 1132768), (21, 970944), (24, 849576), (26, 784224), (28, 728208), (32, 637182), (36, 566384), (39, 522816), (42, 485472), (48, 424788), (52, 392112), (56, 364104), (63, 323648), (64, 318591), (72, 283192), (78, 261408), (84, 242736), (91, 224064), (96, 212394), (104, 196056), (112, 182052), (117, 174272), (126, 161824), (144, 141596), (156, 130704), (168, 121368), (182, 112032), (192, 106197), (208, 98028), (224, 91026), (234, 87136), (252, 80912), (273, 74688), (288, 70798), (312, 65352), (336, 60684), (364, 56016), (389, 52416), (416, 49014), (448, 45513), (468, 43568), (504, 40456), (546, 37344), (576, 35399), (624, 32676), (672, 30342), (728, 28008), (778, 26208), (819, 24896), (832, 24507), (936, 21784), (1008, 20228), (1092, 18672), (1167, 17472), (1248, 16338), (1344, 15171), (1456, 14004), (1556, 13104), (1638, 12448), (1872, 10892), (2016, 10114), (2184, 9336), (2334, 8736), (2496, 8169), (2723, 7488), (2912, 7002), (3112, 6552), (3276, 6224), (3501, 5824), (3744, 5446), (4032, 5057), (4368, 4668)]