71691256

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 179020800

約数和(自身を除く): 107329544

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 71, 73, 76, 91, 104, 133, 142, 146, 152, 182, 247, 266, 284, 292, 364, 494, 497, 511, 532, 568, 584, 728, 923, 949, 988, 994, 1022, 1064, 1349, 1387, 1729, 1846, 1898, 1976, 1988, 2044, 2698, 2774, 3458, 3692, 3796, 3976, 4088, 5183, 5396, 5548, 6461, 6643, 6916, 7384, 7592, 9443, 9709, 10366, 10792, 11096, 12922, 13286, 13832, 17537, 18031, 18886, 19418, 20732, 25844, 26572, 35074, 36062, 36281, 37772, 38836, 41464, 51688, 53144, 67379, 70148, 72124, 72562, 75544, 77672, 98477, 122759, 126217, 134758, 140296, 144248, 145124, 196954, 245518, 252434, 269516, 290248, 393908, 471653, 491036, 504868, 539032, 689339, 787816, 943306, 982072, 1009736, 1280201, 1378678, 1886612, 2560402, 2757356, 3773224, 5120804, 5514712, 8961407, 10241608, 17922814, 35845628, 71691256]

約数ペア:

[(1, 71691256), (2, 35845628), (4, 17922814), (7, 10241608), (8, 8961407), (13, 5514712), (14, 5120804), (19, 3773224), (26, 2757356), (28, 2560402), (38, 1886612), (52, 1378678), (56, 1280201), (71, 1009736), (73, 982072), (76, 943306), (91, 787816), (104, 689339), (133, 539032), (142, 504868), (146, 491036), (152, 471653), (182, 393908), (247, 290248), (266, 269516), (284, 252434), (292, 245518), (364, 196954), (494, 145124), (497, 144248), (511, 140296), (532, 134758), (568, 126217), (584, 122759), (728, 98477), (923, 77672), (949, 75544), (988, 72562), (994, 72124), (1022, 70148), (1064, 67379), (1349, 53144), (1387, 51688), (1729, 41464), (1846, 38836), (1898, 37772), (1976, 36281), (1988, 36062), (2044, 35074), (2698, 26572), (2774, 25844), (3458, 20732), (3692, 19418), (3796, 18886), (3976, 18031), (4088, 17537), (5183, 13832), (5396, 13286), (5548, 12922), (6461, 11096), (6643, 10792), (6916, 10366), (7384, 9709), (7592, 9443)]