257489688

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:241

約数の個数: 128

約数和(自身を含む): 690508800

約数和(自身を除く): 433019112

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 53, 59, 73, 94, 106, 118, 141, 146, 159, 177, 188, 212, 219, 236, 282, 292, 318, 354, 376, 424, 438, 472, 564, 584, 636, 708, 876, 1128, 1272, 1416, 1752, 2491, 2773, 3127, 3431, 3869, 4307, 4982, 5546, 6254, 6862, 7473, 7738, 8319, 8614, 9381, 9964, 10293, 11092, 11607, 12508, 12921, 13724, 14946, 15476, 16638, 17228, 18762, 19928, 20586, 22184, 23214, 25016, 25842, 27448, 29892, 30952, 33276, 34456, 37524, 41172, 46428, 51684, 59784, 66552, 75048, 82344, 92856, 103368, 146969, 181843, 202429, 228271, 293938, 363686, 404858, 440907, 456542, 545529, 587876, 607287, 684813, 727372, 809716, 881814, 913084, 1091058, 1175752, 1214574, 1369626, 1454744, 1619432, 1763628, 1826168, 2182116, 2429148, 2739252, 3527256, 4364232, 4858296, 5478504, 10728737, 21457474, 32186211, 42914948, 64372422, 85829896, 128744844, 257489688]

約数ペア:

[(1, 257489688), (2, 128744844), (3, 85829896), (4, 64372422), (6, 42914948), (8, 32186211), (12, 21457474), (24, 10728737), (47, 5478504), (53, 4858296), (59, 4364232), (73, 3527256), (94, 2739252), (106, 2429148), (118, 2182116), (141, 1826168), (146, 1763628), (159, 1619432), (177, 1454744), (188, 1369626), (212, 1214574), (219, 1175752), (236, 1091058), (282, 913084), (292, 881814), (318, 809716), (354, 727372), (376, 684813), (424, 607287), (438, 587876), (472, 545529), (564, 456542), (584, 440907), (636, 404858), (708, 363686), (876, 293938), (1128, 228271), (1272, 202429), (1416, 181843), (1752, 146969), (2491, 103368), (2773, 92856), (3127, 82344), (3431, 75048), (3869, 66552), (4307, 59784), (4982, 51684), (5546, 46428), (6254, 41172), (6862, 37524), (7473, 34456), (7738, 33276), (8319, 30952), (8614, 29892), (9381, 27448), (9964, 25842), (10293, 25016), (11092, 23214), (11607, 22184), (12508, 20586), (12921, 19928), (13724, 18762), (14946, 17228), (15476, 16638)]