217795708

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1$

素因数の和:627

約数の個数: 72

約数和(自身を含む): 449272320

約数和(自身を除く): 231476612

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 169, 247, 338, 403, 494, 547, 589, 676, 806, 988, 1094, 1178, 1612, 2188, 2356, 3211, 5239, 6422, 7111, 7657, 10393, 10478, 12844, 14222, 15314, 16957, 20786, 20956, 28444, 30628, 33914, 41572, 67828, 92443, 99541, 135109, 184886, 199082, 220441, 270218, 322183, 369772, 398164, 440882, 540436, 644366, 881764, 1288732, 1756417, 2865733, 3512834, 4188379, 5731466, 7025668, 8376758, 11462932, 16753516, 54448927, 108897854, 217795708]

約数ペア:

[(1, 217795708), (2, 108897854), (4, 54448927), (13, 16753516), (19, 11462932), (26, 8376758), (31, 7025668), (38, 5731466), (52, 4188379), (62, 3512834), (76, 2865733), (124, 1756417), (169, 1288732), (247, 881764), (338, 644366), (403, 540436), (494, 440882), (547, 398164), (589, 369772), (676, 322183), (806, 270218), (988, 220441), (1094, 199082), (1178, 184886), (1612, 135109), (2188, 99541), (2356, 92443), (3211, 67828), (5239, 41572), (6422, 33914), (7111, 30628), (7657, 28444), (10393, 20956), (10478, 20786), (12844, 16957), (14222, 15314)]