201991195

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 310542336

約数和(自身を除く): 108551141

約数列:

[1, 5, 7, 17, 31, 35, 47, 85, 119, 155, 217, 233, 235, 329, 527, 595, 799, 1085, 1165, 1457, 1631, 1645, 2635, 3689, 3961, 3995, 5593, 7223, 7285, 8155, 10199, 10951, 18445, 19805, 24769, 27727, 27965, 36115, 50561, 50995, 54755, 76657, 122791, 123845, 138635, 173383, 186167, 252805, 339481, 383285, 613955, 859537, 866915, 930835, 1303169, 1697405, 2376367, 4297685, 5771177, 6515845, 11881835, 28855885, 40398239, 201991195]

約数ペア:

[(1, 201991195), (5, 40398239), (7, 28855885), (17, 11881835), (31, 6515845), (35, 5771177), (47, 4297685), (85, 2376367), (119, 1697405), (155, 1303169), (217, 930835), (233, 866915), (235, 859537), (329, 613955), (527, 383285), (595, 339481), (799, 252805), (1085, 186167), (1165, 173383), (1457, 138635), (1631, 123845), (1645, 122791), (2635, 76657), (3689, 54755), (3961, 50995), (3995, 50561), (5593, 36115), (7223, 27965), (7285, 27727), (8155, 24769), (10199, 19805), (10951, 18445)]